How to choose the Mesh Size:100 mesh 150 microns (m) : For Beer Homebrew Filter, Soy milk, wine residue, enzymes, honey, vegetable juice200 mesh 75 microns (m): For Tea, milk, yogurt, coffee, oil300 mesh 48 micrometers (m): For Tap water filtration, wine, liquor, enzymes500 mesh 25 micrometers (m), suitable for filtering fine wine, fine precipitation of cold wine, cold water precipitation, etc.(High precision filter for all):Function: Reusable filter bags(tea, coffee, cereal, milk, juice, wine, brew)Material: food grade nylonColor: whiteWarm Tips: 1.(+ -1~3 cm, there may be slight differences between manual and different batches.) 2.Advantages: food grade nylon, high/low temperature resistance, leaching slip