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Injectable Spawn Jar Lid
Widemouth - 86 mm

This spawn jar lid will fit all widemouth (86 mm) canning jars. It is intended to be used atop jars of live spawn or mycelium. The lid is equipped with a super heavy duty injection port and a 0.3 µm synthetic filter disc (29 mm diameter) that allows for contaminant-free gas exchange. The lid and all components are 100% autoclavable.

The heavy duty injection port is of the highest quality and is able to withstand hundreds of repeated injections before needing to be replaced. The synthetic filter disc is factory-cut and 100% reusable.

Wrong size? Wrong style? Click here for our complete myco lid selection.

Click here for replacement components.


5 of 5 Stars
These lids are outstanding. I only bought 2 and both my jars innoculated perfectly with extremely healthy growth. The red silicone indeed seems to be pressure-cooker safe, it heals well, and the filter is attached by dried liquid red silicone as well. A little hard to position the needle once inserted but I simply rolled my jars a little after injecting rather than worrying about injecting against the side of the jars, and it's doing fine. My jars personally took a week to show any signs, but I think this is because the filter is very thick, which is fine with me because it has kept my jars crystal clean with zero contaminants. Now they're half colonized at 2 weeks. Slowly but perfectly. I can't say enough about these lids and I'm DEF buying more. I'm not fooling with anything else when my first two jars I've ever spawned have done this good!
5 of 5 Stars
Extremely high quality, I haven't found a better lid yet. I have a feeling that these will last for many many inoculations. They sometimes loosen a bit in the pressure cooker so make sure to tighten them when you pull them out.