How to choose the Mesh Size: 100mesh 150 microns (m) : For Beer Homebrew Filter, Soy milk, wine residue, enzymes, honey, vegetable juice 200mesh 75 microns (m): For Tea, milk, yogurt, coffee, oil 300mesh 48 micrometers (m): For Tap water filtration, wine, liquor, enzymes 500mesh 25 micrometers (m), suitable for filtering fine wine, fine precipitation of cold wine, cold water precipitation, etc.(High precision filter for all) Description: Function: Reusable filter bags (tea, coffee, cereal, milk, juice, wine, brew) Material: food grade nylon Color: white Warm 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 3. Principle: solid-liquid separation