Myco Labs 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.

Several were used and they survived during the pressure cooker sterilization process.

Just started using these but seem to stick well to metal lids. So far- no contamination in my mycelium jars.

These work great for mycology work. They cost a little more than diy making injection ports with RTV sealant but they're much more convenient. I have made multiple punctures and ran these through a pressure cooker 3 times so far and they're still usable in my opinion.

These are awesome... used to do it the old way.. now no contaminated.. easy to use to

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.

Just what I needed, sticks well, heals well

Excellent product!