Grain spawn pressure cooker. 0:00 Intro0:45 Start of Oat Prep3:03 Checking the Grain M.

Grain spawn pressure cooker If you are about to start your journey into mushroom cultivation, a pressure cooker is probably the priciest and scariest purchase you will make. Let the grains soak for 12-24 hours. A pressure cooker stands at the center of the mushroom growing process. Most new mushroom cultivators start out with a fairly inexpensive pressure cooker for sterilizing their grain. One healthy jar of grain spawn can be expanded exponentially into 1000s of jars with a little work and proper sterile technique. Please excuse me if I should use the wrong words Pressure Cookers & Sterilization for Mushroom Cultivation (Plus a Low-Tech Alternative) How To Make Popcorn Spawn Jars (No Pressure Cooker) - Growing Mushrooms [technique] No Soak, No Boil, Grain Spawn - Stop soaking and boiling/simmering your grain! I include my entire process for making grain spawn. Unfortunately, it's going to be difficult to achieve sterilization and proper moisture content without pressure. I usually fo 2-3. A pressure cooker uses steam under high pressure to sterilize materials quickly and effectively. In this video, The Grateful Gardener shows you how to sterilize a grain jar without the use of a pressure cooker. Currently I’m making 2quart spawn bags. I have pre-grown Lion's Mane and Oyster spawn, and a still air box to innoculate with after I sterilize my substrate. In today's class, I will show you how I prepare whole oats for grain spawn using a pressure cooker. Step-by-step tips on boiling, improvised lids, and low-tech sterilization. How to prepare and inoculate grain spawn jars with liquid culture. I looked through the FAQ section for Mushroom Cultivation, and I found a very informative article Oct 13, 2025 · How Does a Pressure Cooker Work in Mushroom Cultivation? A pressure cooker works under a simple but highly effective principle—by sealing the cooking vessel and trapping steam inside, it raises the internal pressure, which allows it to achieve temperatures significantly higher than boiling water (212°F or 100°C). . The pressure cooker then heats the substrate to a temperature sufficient to kill all unwanted organisms, a process known as sterilization. However, one of the most effective and efficient methods is using a pressure cooker. Pressure cookers are generally better at preserving the nutrients found in grains, *Over* *70* *educational* *videos* (*12+* *hours* of pure Mycophilia) available at https://tinyurl. This will elevate the bags from the bottom of the pot, promoting even heat distribution and minimizing direct contact with boiling water. The only thing is, you'll have to steam for a longer time than what pressure cooking would take. Jun 27, 2023 · Benefits of Using a Pressure Cooker for Sterilization There are several methods for sterilizing mushroom grain spawn, including using an autoclave, oven, or boiling water. Professional cultivators trust these pressure cookers for their superior build quality and exceptional performance. So for actual sterilisation you need to reach 130°C (if I recall correctly, somewhere around there) for potential spores to die off. Additionally, make sure to leave adequate headspace in the jars, as grains tend to expand during cooking. Works on electric, smooth-top, and gas ranges. How to properly sterilize grain for spawn using an instant pot. Additional Tips: Yes, it is possible to sterilize grain spawn in an instant pot; it just takes longer than a conventional 15 psi pressure cooker. Do some sort of wireless meters exist or something that i would know the pressure inside? May 4, 2020 · How to Sterilize Grain Without a Pressure Cooker? — Small Batch I am a newbie, but I have watched a number of videos on how to culture mushrooms. What grain types can I use for spawn sterilization? Common grain types suitable for spawn sterilization include rye, oats, wheat, and millet. Instant Pot Sterilization of Rye Grain for Spawn - Home Mushroom Growing - How To Procedure OneEarth Mushrooms 40. Despite what most say, I have proved to myself that it is possible to find consistent success sterilizing with NO pressure cooker. To achieve this, your grain (in this case, organic wheat) needs to be sterile. So, I use 23 quart presto pressure cookers to sterilize my grain and I see some people pull their bags out of the pressure cooker and those bags have all the air sucked out, like a proper vacuum. Mar 28, 2019 · The timing charts for pressure cooking variety of grains. r/unclebens is a beginner-friendly community created by Shroomscout to share the "Ready Rice" technique, a simple and beginner-friendly method for cultivating mushrooms without a pressure cooker. Regardless, a pressure-cooker isn't essential. The easiest way to do this for a home cultivator is to use a good quality pressure cooker. Sterilization is most commonly used for grain substrates. Discover the detailed procedures, benefits, and drawbacks of each technique to optimize your mushroom growing process. A step by step explanation and demonstration on how to make perfectly hydrated grain spawn FAST!!! This expedited hot soak method allows you to easily prepare your grain to a perfect moisture Documents: Sort: [Name] [Rating] [Date] [Reset] Correct pressure cooker use 4. Jan 10, 2023 · I saw someone once posted a chart about sterilization times for various pressures but I can't find it. The consistency of the sterilzied grain should be similar to al dente pasta or cooked rice, when grain spawn is sterilized al dente, it retains its shape and texture, and is not overcooked and Using a pressure cooker is an efficient and effective method to sterilize grain spawn, but many hobbyists often get confused about how much water to use in the process. ⬙ PGT Links ⬙🧫Links to all products/gear The pressure cookers are used when sterilizing substrate that is already in a grain bag. Luckily, there are several ways you can sterilize mushroom substrate without a pressure cooker, and we will explore those options in this article. How to make mushroom grain spawn for cultivation. Pasteurization I usually rinse dry rye grains, cook for 15 mins in the pressure cooker, drain rye grain , fill jars , then pressure cook for 90mins Jan 13, 2025 · Pressure cooking - the most effective method of sterilization is cooking your substrate in a pressure cooker at 15 psi and 250°F for 90 minutes. Why do I need 15psi when pressure cooking? Tips? I've got a 23qt Presto Pressure cooker. I couldn't find any tips, videos or guides on how would that be feasible or controlled since you don't know the exact pressure. In today's class, I'll be going over how to make your very own sterilized grain bags at home from start to finish. For example, this presto pressure canner can hold up to ten jars, and will last a super long time if you take care of it and can be purchased for about $100. Plus the 1 safety tip you should always use with the pressure cooker. This technique utilizes high pressure and temperature to eliminate microorganisms, ensuring a clean and sterile environment for your mushroom culture. *Pints and half pints only for water bath method Note: This pressure canner is designed for use on household range Learn how to make grain spawn for mushroom cultivation at home. Feb 14, 2022 · Materials: 100% organic whole rye berries (amount needed is dependent on how much spawn you want to make) 5 gallon bucket or other large container (needs some sort of lid or cover as well) Large spoon or spatula Strainer Gypsum Pressure cooker Stove Aluminum foil Mason jars or unicorn bags If using mason jars be sure you have modified lids that have both an injection and breathing port If The problem is that some mold spores or unwanted mycelial spores can survive in boiling temps. You need a good quality pressure canner that can reach at least 15 psi and is large enough to fit your grain jars. (personal preference) Once the contents have cooled, remove the jars from the pressure cooker and the foil as well. Depending on the size of your pressure cooker, you may be able to stack jars, but ensure the cooker isn't overcrowded and steam can circulate freely. Gypsum powder helps establish a more basic pH of the grain spawn and helps prevent grains from sticking to each other. Requirements Shopping list for grain prep. To completely sterilize your grain I think you need pressure, but there are pasteurization teks out there. A pressure sterilizer allows you to properly sterilize your grain spawn and substrate, giving your mycelium a clean, uncontaminated environment to colonize. Oct 18, 2025 · Scrape the browned bits from the bottom of the pot. The kind of rye I am using is winter rye grains/berries that plants in the Sterilizing your grain spawn jars without a pressure cooker can be a challenge, as it's important to eliminate any bacteria or fungi that might compete with your intended mushroom culture. My pressure cooker's high setting isn't working but it can do low, which reaches about 10psi Understanding Grain Spawn and Pasteurization Before we dive into the process of making grain spawn without a pressure cooker, it’s essential to understand the basics of grain spawn and pasteurization. Jun 22, 2023 · To make rye berry grain spawn, you'll need rye berries, water, and a pressure cooker or boiling pot. How to make popcorn grain spawn jars without a pressure cooker, in the oven. Mar 9, 2023 · The spawn can be purchased online from various vendors and comes in many different forms including liquid cultures, grain spawn, sawdust spawn, and more. The grains provide a nutrient-rich substrate for the mycelium to grow, allowing Sep 29, 2024 · In the realm of mycology, brown rice grain spawn serves as a crucial component for cultivating a wide range of edible and medicinal mushrooms. 5 qt All American! Enjoy and MUSHLOVE🇺🇸 All Ame Aug 12, 2009 · how reliable is rye grain when only boiled in a pot, with water close to the top of the jars and steam cooking instead of using a pressure cooker? does it not come close to killing contaminates like Making grain spawn for growing mushrooms at home doesn’t need to be complicated! This method does NOT require the use of a laminar flow hood. First, rinse the rye berries thoroughly with cold water before soaking them overnight. Once the pressure cooker lid is safe to open, carefully remove the lid and let the contents inside cool until you can pick it up with a single rag. i also show inoculation inside a still Stack in your Presto making sure to use the appropriate heat source for your pressure cooker. In this post, I am going to discuss how you would use a pressure cooker to sterilize grain spawn jars, mushroom substrate, liquid culture or other growing utensils. Can you use an instant pot pressure cooker that reaches 10 psi to sterilize a grain bag / spawn bag with rye Dec 18, 2024 · By subjecting substrates like grain spawn or sawdust to high heat and pressure, pressure cookers effectively eliminate unwanted bacteria, fungi, and mold, creating a clean and hospitable environment for your mushroom mycelium to thrive. Are autoclaves better than pressure cookers for sterilizing mushroom grain spawn? Autoclaves and pressure cookers are both capable, but autoclaves are much more efficient for larger Dec 23, 2015 · Since I'm pretty much an evangelist for oats, I get a lot of requests for a tek for oat spawn preparation. Learning how to use a pressure cooker safely is an important step in your mushroom growing journey. Pasteurization I usually rinse dry rye grains, cook for 15 mins in the pressure cooker, drain rye grain , fill jars , then pressure cook for 90mins Sterilizing Rye Grain for Spawn in an Instant Pot Ingredients: Instant Pot Mason jars with filtered lids and rings (I prefer the “1 pint” wide mouth jars) Rye grain Mixing spoon or paddle Colander, muslin bags or cheese cloth Aluminum foil (optional) Gram scale or measuring cups and spoons (optional) Gypsum powder or gypsum pellets (optional) Jan 27, 2013 · im watching RR's videos on perfect grain spawn but it doesnt specify the water level , it seems like hes got the jars on a steamer inside but im not sure if the jars are submerged atall in the water Feb 28, 2020 · Hello guys, One question, have searched around a bit but find shared opinions on this. Types of Spawn You have Additionally, using a rack or trivet inside the pressure cooker can help raise the jars off the bottom, promoting better steam circulation and preventing the jars from heating unevenly. vessels such as glass jars, polypropylene containers or bags. Pour water till half of the bottles and boil for a couple of hours. I read the instructions and raised the pressure to 15psi with just water, so I'm good on the function of the cooker. Check out this easy to follow guide to learn how to make your own. Nail these steps—grains selection, sterilization, mixing, monitoring, and troubleshooting—and you’ll have solid, vigorous mycelium ready to fruit. Sterilizing the Grain Jars: Load your jars into the pressure cooker, being careful not to block the vent. You can do it a Hey students, I’ll show you how you can make some easy popcorn grain spawn at home with drippy corn. You can steam the grain jars instead of pressure cook. Nov 23, 2015 · The purpose of grain spawn is to allow your chosen mycelium to multiply in a controlled environment, before you let it loose on your fruiting (bulk) substrate. Chemical sterilization - you can use chemicals like hydrogen peroxide to sterilize substrates that are heat-sensitive. 0:00 Intro0:45 Start of Oat Prep3:03 Checking the Grain M Mar 13, 2022 · Quality mushroom grain spawn is essential to any mushroom growing project. I load pre boiled grain to jars, cover tightly with aluminium foil or with lid (not tight) and put them to a deep enough pot with bottom raised by something like a mesh or u can use extra metal lids. Sterilize the grain for 3 hours in a pressure cooker. If using an electric hot plate, make sure to purchase a unit with an Infinity switch and the Sterilization Without Pressure Cooker? [contamination] So im new to growing mushrooms and dont have a pressure cooker yet, but I wanted to make oyster mushroom in rye berry grain spawn. For this example we will be using Rye, but there are many other seed/grains that you can use with great success. Have not gotten contamination once with any of my grain jars or liquid cultures May 18, 2025 · Sterilizing grain without a pressure cooker is a simple and effective way to preserve its quality and safety for consumption. Oct 8, 2011 · Hello everybody, recently, while experimenting with fermented substrates, I discovered an easy way to create grain spawn without the need to sterilize anything. Sterilization Tips 3. Cooking grain, sterilizing tools and grain spawn, pasteurizing bulk substrate…all these significant steps of mushroom cultivation happen inside a pressure cooker. I just want to make sure, when we're making grain spawn or liquid culture in the pressure cooker, do we have the jar lids closed? Learn how to sterilize grains for mushroom cultivation using a pressure cooker and grow bags. While whole grain virtually requires a pressure cooker to sterilize effectively. Learn how to turn a liquid culture syringe into pounds of grain spawn. The recommended pressure is 15 PSI. Mar 22, 2025 · Sterilization in Pressure Cooker or Autoclave to eliminate all forms of microorganisms in substrate (molds, fungi, bacteria, spores). Sep 23, 2024 · In this article, we explore two methods of preparing magic mushroom grain spawn without a pressure cooker. Can anyone help? Or give any advice on how I can tell it's done sterilizing? (I'll be using un-supplemented sawdust in stuffed in filter bags for my substrate and sorghum grains in glass jars for grain spawn) Jan 13, 2025 · Pressure cooking - the most effective method of sterilization is cooking your substrate in a pressure cooker at 15 psi and 250°F for 90 minutes. Place the grain bags or quart jars in your pressure cooker to sterilize based on the method used (bag or jar) and the size of the bag. By following the methods outlined in this article, you can ensure that your grain is free from bacteria, fungi, and other microorganisms. In this method, we’ll use a combination of heat, steam, and time to sterilize the grains and Jun 19, 2013 · Hello, I'm planning to buy a 'large' PC (comparatively to the 8qt one i use now ) which will be used to prep 4qt bags of grain spawn for a small commercial-scale oyster production. How to Make Popcorn Grain Spawn. Jul 20, 2023 · Following these steps will help ensure proper sterilization of grain spawn using a pressure cooker, creating a favorable environment for successful cultivation or storage. This pressure ensures that any contaminants are killed effectively while also maintaining the integrity of the grains. You can also can your own vegetables, fruits, meats, seafood, jams, jellies, pickles, and salsa. Apr 19, 2021 · These instructions will guide you through the process of preparing grain either to be used as spawn to inoculate bulk substrates or as mushroom substrate that can be directly cased. Jul 9, 2025 · Turning grain spawn into a bulk substrate is where mushroom cultivation goes from hobby kit to serious home lab. There are many viable methods however this is what works for us. This grain is simple to prepare but has its pros and cons. A straight forward guide for beginners on how to sterilise grain spawn jars for mycology. Can you use an instant pot pressure cooker that reaches 10 psi to sterilize a grain bag / spawn bag with rye Jun 26, 2023 · 6. Put the lid on and set to seal. This will allow the mycelium to colonize the jars and spread. In this guide we will discuss the method we use to load a pressure canner. Step 6 – Load Grain into Jars. Time vs Pressure for sterilization process. Its 8-quart capacity is best suited for preparing individual bags of substrate or small batches of grain spawn. I really enjoy it and Jan 13, 2023 · Hello all, first post here, had a couple of quick questions and hoping to get some help. Explore effective techniques and equipment options for successful grain sterilization to grow mushrooms at home. But for beginners with limited knowledge and budget, this equipment is not viable. Mar 1, 2019 · Mushroom spawn is the medium that you’ll be inoculating with mycelium. Credits to stuntin21 for the tek. Been doing this for over a year with 100% success. 2K subscribers Subscribe This video compares the two most common pressure cookers in mushroom farming - the 23 qt Presto and the 21. Sep 5, 2025 · Learn how to make grain spawn without a pressure cooker using simple survival methods. This comprehensive guide will provide you with a step-by-step tutorial, empowering you to create your own high-quality spawn at home. It says to pressure cook for 30 min,when should I start the timer? Once it starts hissing or right away. In this comprehensive guide, we will delve into the essential process of sterilizing grain spawn using a pressure cooker, discussing techniques, tips, and best practices to ensure your success. Since you already have an Insta pot, I would consider trying to use it to sterilize at 12 psi it reaches and for longer times like two hours instead of 60 or 90 minutes. Alternative thermal treatment in multicooker, instant pot and oven Dec 18, 2024 · The process involves placing your prepared substrate – whether it’s grain spawn, straw, or other suitable materials – inside the pressure cooker. There are 2 ways of preparing the grain, either by measuring grain and water, combining them in a jar and pressure cooking it, or first simmering the grain in order to achieve the proper water content, and then Mar 23, 2025 · Learn how to make corn grain spawn for gourmet mushrooms with this step-by-step guide. A pressure of 15 PSI (pounds per square inch) raises the temperature inside Do you need to pressure cook your substrate before inoculation, or is that to just give the mycelium the best chance? Would simply sterilizing the equipment with boiling water (jars, lids, etc) and boiling the grain, putting it in the jars with sterile spoons, and mixing mycelium in when cooled with sterile tools be enough? Basically following the steps of water canning, without the actual May 5, 2025 · Learn how to create grain spawn for mushroom cultivation using three methods: soak and simmer, no soak no simmer, and fermentation. Each quart jar was filled about 2/3rds full and placed into a large pot on jar rings, and then boiled in about 2 inches of water for about 2 hours. Because the temperature is higher, the time can be shortened. It’s gonna be more time consuming and you’ll probably still get some contam every once in a while. When sterilization is complete allow the pressure cooker to cool down fully ( i leave it overnight normally) before removing the grains. Next, take the swollen kernels and place them into your mason jars ready for sterilization. It also allows for greater control over the sterilization process, which is essential for producing high-quality grain spawn. Step by step instructions with mushroom cultivation supply list. Many resources suggest to pressure cooking substrate for 90 minutes at 15 PSI. When you sterilize mushroom substrate to avoid contamination, a pressure cooker usually does the job. This step-by-step guide ensures a contamination-free process for healthy mycelium growth. A pressure cooker is necessary to sterilize the substrate before inoculation which helps prevent contamination from outside sources that could inhibit mushroom growth. What is Popcorn Tek? Popcorn tek is a relatively inexpensive, easy and reliable technique for making grain spawn using corn kernels. Sterilization is an important step in any mycology project. Grain spawn provides the nourishing foundation for mushrooms, and sterilizing it correctly helps prevent contamination. Growers commonly use rye, wheat and rice to create grain spawn that they then use to inoculate bulk substrates or make more grain spawn. Just don't cut your sterilization time short, or you'll be sorry. I hydrate the rye berries overnight, the ne Follow along as we show how to sterilize grain mushroom growing substrate using a pressure cooker. Pressure Cooker (read my top 10 pressure cookers for mushroom cultivation). Anyone have any tips on how to achieve this? I release pressure when I'm building the pressure up to create a vacuum and suck some air out quickly. 44 Pressure cookers and canner are important tools in mycological work. Preparing and using whole grains for mycelium running, such as rye grain, wild bird seed, and grass seed. How To Load A Pressure Cooker It’s common practice for mushroom cultivators to use pressure cookers or canners to sterilise grain for spawn or substrate for producing fruiting blocks. Aug 5, 2020 · Yes, unfortunately, grain spawn still does need to be sterilized- but you can get a pressure cooker relatively inexpensively that can last a long time. Jan 15, 2025 · To improve the stability of your grain spawn bags during cooking, consider using a rack or trivet inside your pressure cooker. For those new to mushroom growing, grain spawn is essentially mushroom mycelium growing on sterilized grain. Let it cool, remove from sterilizer, and inoculate as soon as possible. Following these steps will help ensure proper sterilization of grain spawn using a pressure cooker, creating a favorable environment for successful cultivation or storage. If you aspire to embark on this fascinating journey, mastering the art of making brown rice grain spawn is indispensable. This is using a Presto 23 Quart & 9 Litre tower pressure cooker. Rea I want to make grain (rye) spawn with a regular pressure cooker that doesn't have a pressure gauge. My pressure cooker only reaches 11 psi, and I don't know if extra time can make up for the diminished pressure, nor how much extra time. Find out more with Zamnesia! How to safely load your sealed bags of grain into your pressure cooker for sterilization. a pressure cooker that can reach 15 PSI. Prepare your grain jars using the methods I discuss in how to prepare grain spawn. Honestly, it isn't much different from rye--it's just a little simpler and more foolproof Dec 22, 2024 · After rinsing and soaking, drain and then fill your grain jars with the appropriate water-to-grain ratio, as specified in your pressure cooker guide. Complete guide with sterilization, inoculation, and troubleshooting tips for beginners. So instead of steaming say a 32oz jar of grain spawn for a day + in a normal sauce pan, a pressure cooker with 15psi capability does it in 90min Reply reply more replyMore replies Hey guys I'm trying out this popcorn grain spawn tek. Includes two prep methods, sterilization tips, and how to inoculate jars using liquid culture, agar, or grain-to-grain transfer. Jul 13, 2009 · I just bought a new pressure cooker, and I want to make sure that I sterilize my jars the correct way. Dec 15, 2024 · Why Make Grain Spawn Without a Pressure Cooker? Making grain spawn without a pressure cooker is a more accessible and cost-effective option for many mushroom enthusiasts. Jul 20, 2023 · Once cooled, the grain spawn is ready to be used for further cultivation or stored for future use. It is possible to steam sterilize grain spawn like the PF tek but it needs 8 hours of steaming. Jan 2, 2008 · I was curious to see if i could do spawn without a pc i tested out nine jars inoculated with pf spawn. You can trust that your grain spawn is ready to inoculate, and that your substrates will support a quality crop. I have Unicorn bags and 80lbs of premade oak/soy hull mix. I use a 20qt pot with a lid & a trivet, put the grain jars on the trivet and let them steam for 4 hours, the steam coming from water boiling below the trivet. But it's also one of the most important. Apr 16, 2023 · Discover alternative methods to sterilize grain spawn without a pressure cooker. We go over many details, like why I prefer to use the Instant Pot over a traditional Pressure Cooker Now, if you were doing a bulk grow using bird seed or rye as spawn, then yes, you probably need a pressure cooker in order to get the heat to penetrate in a reasonable amount of time, but for the standard PF tek using brown rice flour as the substrate, don't worry about it. May 11, 2023 · That spells uniform and consistent sterilization. Jan 14, 2017 · Using a pressure cooker or autoclave, sterilize the grains at 15 PSI for at least 90 minutes. Add the meat back to the pressure cooker along with the salsa, tortilla chips, chipotle peppers, adobo sauce, tomato paste, chili powder, and ground cumin and stir to combine. I never had grain Aug 9, 2021 · Grain spawn is used to propagate mushrooms by inoculating bulk substrates such as hardwood, straw and for certain varieties manure/compost. Each pressure cooker provides consistent, reliable pressure levels critical for achieving complete sterilization of mushroom substrates, grain spawn, and cultivation tools. Yes, unfortunately, grain spawn still does need to be sterilized- but you can get a pressure cooker relatively inexpensively that can last a long time. After a boil, I’m scooping them into a . Apr 18, 2024 · Load your pressure cooker with your grain spawn containers. Once sterilized in the pressure cooker, you want your spawn grain to cool at room temperature typically for 12+ hours. Timestamps: 0:26 - preparing grain spawn jar lids 2:57 - hydrating popcorn kernels 4:51 - straining and drying popcorn Sep 23, 2024 · In this article, we explore two methods of preparing magic mushroom grain spawn without a pressure cooker. Proper preparation of grain spawn is a crucial step for anyone delving into mycology. Jan 15, 2025 · Most grain spawn bags should be cooked at a pressure of 15 psi for optimal sterilization. Grain spawn is a mixture of grains, such as oats, wheat, or rye, that have been colonized by mushroom mycelium. A pressure cooker will allow you to make your own grain spawn, agar plates, liquid culture, and bulk substrates, saving you money and helping you deepen your connection with your mushrooms. Learn what grain spawn is, the best grains to use for grain spawn, what supplies you'll need and how to make grain spawn step-by-step. Mason Jar Capacity: 13 Half-Pints, 10 Pints, 7 Quarts*. It’s perfect for those focused on rye grain spawn recipe UK, DIY mushroom spawn bags UK, or making mushroom spawn at home UK. Below are common errors to avoid when sterilizing grain spawn. What you need: shiitake culture: on agar, as liquid culture or grain spawn. Mar 5, 2023 · Sterilize the grains in a pressure cooker or autoclave for at least 60 minutes at 15 PSI. So to ensure foods (or whole oat grain spawn) maintains the right texture, a pressure cooker is used. This article describes how to make grain spawn, one of the most common types of spawn used in the mushroom industry. At one point, shares dropped as much… But it really shouldn’t be. this method steam sterilizes vs using a pressure cooker. The safe, easy way to sterilize all your grain spawn, bulk substrate and more. has anyone else tried this? i have Feb 28, 2020 · Hello guys, One question, have searched around a bit but find shared opinions on this. For example, this presto pressure canner can hold up to ten jars, and will last a super long time if you take care of it and can purchase for about $100. For details beyond the preparation, please Nov 24, 2022 · How I Prepare Grain for Mushroom Mycelium Spawn at Home for Monotub Cultivation - Pressure Cooker OneEarth Mushrooms 38. Aug 29, 2022 · Popcorn Tek is a good growing method for beginners. Now the fun begins! In this video, I will show you how to make popcorn grain spawn, also known as Popcorn Tek. Sterilize at 90+ minutes inside your pressure cooker at 15PSI. I only use mine as a pressure cooker since other instapot will not reach 15 psi. One of the most popular PCs for beginners is the Presto 23 quart. Simmer in hot water until grain puffs up with water ( Normally 30 minutes) Strain and dry grain until it is mostly dry on the outside. The stock recently traded near $155 after sharp intraday swings. I read a study comparing the May 9, 2010 · In this thread I will be going over step by step how I prepare rye grain/berries for sterilazation in the Pressure Cooker. I was thinking of PCing for 3 hours to compensate, but realized I don't know if this will adversely affect the substrate (rye, soghrum, grain spawn). so far there is plenty of growth and no signs of contam. Jun 18, 2019 · It's pressure cookers at the ready as Benedict Noel guides us through the final stages of preparing shiitake mushroom spawn. In this video I do a quick run through of prepping brown rice for mushroom inoculation and spawn. Jun 11, 2025 · Fagor Duo Stainless Steel Pressure Cooker 8-Quart The Fagor Duo Stainless Steel Pressure Cooker presents a versatile option for smaller batch mushroom cultivation and general kitchen use. We show you step by step how to get the best yield, colonization, & fruiting. Soak grain for 24 hours in cold water. 5 micron unicorn bag, 3 days ago · Palantir Technologies is under heavy pressure this week. com/videovaultsage ! YT and Patreon had taken me down in t This detailed method ensures your grain spawn is hydrated, sterilized, and primed for inoculation. 4K subscribers 792 How to Hydrate the Popcorn and then Sterilize the jars in the Instant Pot (Pressure Cooker). Popcorn tek is The bags can be against the pressure cooker walls, but if one has a gas stove, you'll need to elevate the floor separator an inch or two or else flames can lick the sides and cause the bags to melt. Gas exchange Lids (details can be found in this article here). You might want to look into pasteurization of different spawn and media types. 00 A few tips on how you can avoid contamination by increasing your sterilization procedures by Ryche Hawk. Hence the use of a pressure cooker. Apr 18, 2024 · In this post will discuss how to make perfect grain spawn every time. A start to finish tutorial on how to make mushroom grain spawn from liquid culture geared towards beginners. 4. If you heat it without the pressure, the bag will inflate and pop like a balloon. Dec 15, 2024 · The Pressure Cooker Method Pressure cooking is a reliable and efficient method for sterilizing grain spawn. Find out more with Zamnesia! My pressure cooker just got here and I'm ready to take mushroom cultivation to the next level. Refill water as necessary. Yes you can u/darkhero5 linked an interesting scholarly source that you should look at (TL;DR the instapot model in that study was the only retail pressure cooker tested that was able to destroy spores, indicating that modern pressure cookers could be viable for sterilization practices. Even experienced cultivators can make mistakes in this process. Note: These steps will allow you to make 4 quart jars of popcorn grain spawn when completed. Make sure to leave enough room so that the safety valves on the lid of your Pressure Cooker are free and clear. Instructions: Sold in 1lb, 2lb, 3lb, 4lb, 5lb quantities. Set to manual pressure for 25 minutes. Soaking allows the shell of the grain to soften and absorb more water later, when boiling. U have to Keep checking the water and add hot water about two times during cooking. We sell Small Autoclaves for Pressure Sterilizing grain spawn. meocc tdb awmxvz njprl rqvjev xfupu dinm skdrcp lijux lfhzdyp dtcy cswnjbj vae glqfnk laoj