Part 1 : Unit 3 : Modifying Mason Jar Lids for Mushroom Cultivation
The video markers above 👆🏼correspond to the the various Steps in this Unit. Click on them to skip to a Step.
Push the injection port through the larger hole, with the flat round part on top. Because it’s a tight fit, pushing it through usually won’t be enough. You will need to pull and tug at the injection port from the other side to help it go all the the way through. Make sure the injection port is flat and flush with the top of the lid, and the bottom of the injection port is round and unpinched.
Alcohol-wipe the area around the smaller hole on the inside of the lid, and then dry it with a towel so that the sticker sticks well. Apply the filter sticker onto the smaller hole from the underside of the lid, making sure it is centered. Apply pressure on the whole sticker to make sure it sticks well. This is important as this lid will be exposed to high pressures and temperatures.
Place the silicone gasket around the inside of the jar lid. You always want to make sure the gasket ring is in place when closing a jar.
That’s it! Continue preparing all the lids you need, one by one. Each one will require your full attention, and don’t cut corners. Once that’s done, give yourself a pat on the back – you’ve completed a quick but very important step!
It takes some time to get a feel for the drill and the hole size you’re making. If you go past the 7/16″ mark and the hole isn’t a tight fit, you can use some “High Temperature Silicone / Gasket Sealant” around the injection port hole, and seat the injection port in the hole. The sealant should provide an airtight seal after 24 or 48 hours of hardening.
Next Unit: Building a Still Air Box (SAB) and a Monotub. In the next Unit you will learn how to build a SAB and a Monotub, both crucial tools in your mushroom cultivation journey.