A good fruit wine should be clear, transparent, without sediment and suspended solids, giving people a sense of clarity, and its color should be the unique pigment and fragrance of fruit juice. The membrane filtration process is carried out at room temperature, pure physical method filtration, without qualitative change in the separation process, and can remove bacteria, impurities, extracts and harmful substances. The fineness of filtration determines the quality of the wine. Hangzhou Dali combined with its laboratory to carry out verification and other tests to help customers find the most suitable filtration solution.