Microppose Self Healing Injection Ports for Mushroom Spawn Bags and Jar Lids (50-Pack)

I use these on myco-bags as well as lids. they stick well, hold up to repeated injections/extractions and stay stuck even after I apply copious amounts of 70% Isopropyl alcohol to the bag/lid. Like enough to soak into them. I have had no contamination. I use both these and the silicone stoppers but prefer these for the ease of use and reliability. Plus they arent very expensive at all. If you need a self healing injection port to stick to your lid/bag, I recommend these.

Excellent product!

They withstand the PC and work well

Just what I needed, sticks well, heals well

I'm very happy with these. So far they have survived 3 sterilization cycles with no sign of giving up. I was using the rubber plug style ports, but I was tired of having to dig colonized grain out of the bottoms when I spawned to bulk. No more stuck grain.