The concentrated traditional process in herbal tea product↑ion process has the following characteristics, such as ←membrane evaporation and high evaporation cost, and the process will destroy liquid compo¶sitions and affect the yield, and the process flow as shown in the followi$ng figure:

 According to the characteristics of complex compone‍nts of herbal tea and high flavor demand, the ceramic membrane filtration and nanofiltration ​concentration membrane process are used to replace membrane evaporaλtion process, and firstly, as the pretreatment process of nanofiltration concentration, t≤he ceramic membrane filtration technology removes collo≤id, macromolecular protein, fiber and other impurities,‌ and retains most of the active ingredients in the leachin​g solution. The filtrate enters coil nanofiltration membrane concentraαtion process, which can improve the concentration and yield of concent§rated juice, and when it tries to keep the original flavor of herbal tea, it can redu ce more than 50% of the concentrated energy costs. The proc₹ess flow is shown in the following figure:

    

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