Large Nylon Straining Bag for Homebrewing by Almost Off Grid. Straining bag for Homemade Wine, Mead, Cider and Beer. Either put your fruit and flowers inside it and tie it inside the bucket to allow the contents to infuse, or strain your must to remove the bits before moving into a demijohn or clean bucket. This fine mesh straining bag measures 40 x 60cm and is made from 100 mesh, 120 micron food grade nylon. The straining bag is reusable. Simply empty out the strained bits (compost them if you can), rinse inside and out and you're ready to use it again. Top tip: do this immediately after using the bag. The longer you leave it, the harder it is to clean as the bag and contents dry out.