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Posted March 24

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Posted December 21

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Posted October 14

Cellulose Filter Disc - 70 mm

These cellulose filter discs are designed for regular mouth canning jars (70 mm diameter). Many mycologists prefer these cellulose discs over our regular synthetic discs because they are thick and rigid and pore size is guaranteed not to increase when autoclaved. They allow for gas exchange while providing 99.97% efficiency filtration down to 0.3 microns. Autoclavable. They are 100% reusable.

To use this filter, simply fit it snugly under the jar lid, or place it on top of the jar lid and secure it with the jar band.


5 of 5 Stars
Im going to go with these over the regular filter disks in the future. They are obviously much better for the application we put them through. Im actually confident this will last me forver, probably many thousands of pressure cookings.