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!

Just what I needed, sticks well, heals well

They withstand the PC and work 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.

Used these on Mason jars for mushroom grain spawn. These stayed on well after putting them through the pressure sterilizer. I am having successful mycelium growth with no contamination in all 12 jars that I made so they seem to work well.

Stick like crazy. Been thru the dishwasher a few times and still holding.

These are indeed the best self injection ports. I’ve used others and they tend to need specific sized holes for a perfect seal to keep contamination away from your project. These you only need to make a hole big enough for your needle and then stick one of these puppies on. The healing factor is amazing. Less than a second and could barely tell I ever punctured the port. Not to mention they can handle multiple runs through a pressure cooker. Still have yet one to feel as if it lost its bond to my mason jar lid.