This is the number one time in which its helpful to have support from live mycologists or mushroom experts. Stack the jars neatly within your pressure cooker or pot (make sure you buy a good quality pressure cooker so it doesnt explode); you want to stack them in an alternating alignment to allow air movement in and out of the holes in the lidsnot directly on top of each other. You want your surface as uniform as possible. #6 Virgenu 12 Jars Mushroom Growing Kit. A really quick but toxic alternative is to use a soldering iron to melt the holes. Explanation: There are three parts for spawning to bulk you need to know. 8) Add your casing layer. What youll need for your shotgun fruiting chamber: A Quick Note on using the PF Tek for Bulk Grows, How to Get Started with the Uncle Bens Tek, Growing from Uncle Bens Tek/ Spiderman Tek, Mushroom Flush: First, Second, and Third Flushes. Methods involve sterilizing grains in jars like PF Tek, or sterile plastic bags filled with pounds of grains. By adding more liquid you throw off the amount of moisture. Simple; not everybody wants to buy large bags of rice flour and vermiculite and dozens of canning jars and possibly a pressure-cooker (lots of people already own one, but not everybody does) without knowing if theyre even going to like mushroom cultivation. UncleBen..Tek - Mushroom Cultivation - Shroomery Message Board Some people believe adding extra new nutrients to the bulk substrate will help increase yields, such as manure or coffee grounds. But also dont assume you cant do itonce you get the hang of it, its so rewarding. 01:09. You DO NOT want standing water, or for it to be soaking wet on the bottom. Then add a 1 cm layer of coco-coir on top. This technique is great for first-timers as it bypasses the need for cooking and preparing rice. Wipe your surfaces with ISO and Lysol the air. It actually does a better job of penetrating the cell walls of bacteria, and doesnt evaporate too quickly. You can try for a third flush, but you will get fewer mushrooms than the second flush. Your colonized spawn grains already contain all of the nutrients required to fruit mushrooms, but the grains are 100% colonized by mycelium and wont be contaminated. Improved success rate when using revised method of creating air exchange holes. Next, you will need to prepare the metal lidsyou will need to nail four holes into the lids, large enough to fit the syringe needle with a little wiggle room, but not too large as it may increase the chances of contamination.