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The commercial tissue grower can use the clever tools that microppose provides. What culture do you have? With Lids. Filters with Adhesive Lids for Plant and Mushroom Tissue. The thoughtful and generous owner of microppose prepared this item. Mush cherish and thank their pal. You can apply these self-healing injection ports to jar lids or tissue culture containers so you can inject material while safeguarding your medium from spore and germ contamination. You can install these filters in your fruiting chamber to provide your substrate with fresh air while keeping high humidity levels. The monotub method is the best way to get started growing mushrooms indoors. You hardly need to raise a finger thanks to the ventilation and humidity control. Set, seal, and cultivate your own mushrooms with ease.