Brown Rice Flour in mushroom spawn grain jars (AKA BRF TEK) is a popular way to produce spawn for growing mushrooms. I've heard it's particularly good for growing mushrooms directly from the mason pint jars (modification of bottle culture). So we will be using the BRF TEK recipe of 2 parts vermiculite, 1 part brown rice flour, and 1 part water and sterilizing in our Instant Pot for 60minutes on high. ************ My Instant Pot is a 6Qt, check it out HERE: https://amzn.to/2WlAAkY ************ Here is a complete list of all the equipment you need to get started growing mushrooms! Pint Jars: https://amzn.to/39GUfAq LIDS: https://amzn.to/2yNIkD4 Pressure Cooker (non-electric): https://amzn.to/2SWihBi Bird Seed: https://www.tractorsupply.com/tsc/product/value-mix-wild-bird-food-35-lb Brown Rice Flour: https://amzn.to/383IvHT Chopped Straw: https://amzn.to/2ST50Jf Liquid Culture Syringes: https://www.etsy.com/search?q=liquid%20culture%20syringe Injection Tops: https://amzn.to/2twXk5o Myco Bags: https://amzn.to/36tAryf Syringes: https://amzn.to/2tyoSqW Could you help me and my channel out? 1) Use my Amazon Affiliate link: http://amzn.to/2wwW1Ao 2) Patreon Tip Jar: https://www.patreon.com/punkyrooster 3) Paypal Tip Jar: be.lt3.be@gmail.com 4) My Amazon Wishlist: https://www.amazon.com/hz/wishlist/ls/2XE0WPN6VSVUT?ref_=wl_share 5) Buy my sci-fi novel: https://amzn.to/2ESvQdc CONNECT WITH ME! Instagram: @punkyr00ster (zeros instead of O's) Facebook: https://www.facebook.com/punkyr00ster/ Email: be.lt3.be@gmail.com growing mushrooms, shrooms, mycology, grain spawn, grain jars, tek, spawn, spawn jars, mycelium, mushrooms, magic, oyster mushrooms, diy, bulk substrate, mushroom fruiting, how to grow mushrooms, mushrooms. propagation, liquid culture, brf, brf tek, brown rice flour, pf tek