B is for Best Fruiting Bag

Measuring 4x3x18" and with a 5.0 micron filter, these fruiting bags are able to hold 1-2lbs of your favorite substrate. Perfect for making many small batches, these bags are fully autoclavable and have the highest gas exchange of all our bags. These are the only bags with filters large enough to preseal, and is effective against most contaminants, but can still be subject to attacks from smaller microbes such as bacteria, penicillium, and certain black molds.

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