Syringe filters

Make professional mushroom growing containers out of jars or buckets!

These syringe filter have a 0.22 µm (micron) filter that allow for air exchange but keep potential airborne contaminants out.
They are much more efficient than for example surgical tape.

Drill a 5 mm hole in the lid of the container you want to use, slap some high temperature silicone on the bottom of the syringe filter (optional) and you are ready to go.

Now go make some jars!
5 pcs (13 mm. 0.22 µm)