2 Precautions Tips The device should be fixed with clips, kept vertical, and sealed to prevent steam from escaping, The size of the filter paper sleeve should be moderate(the bottom size is 2. 3cm*2.3cm), when put it into Soxhlet extractor, be careful not to block the edge of the siphon tube, and the height of the tea leaves in the sleeve should not exceed the siphon The ethanol in the bottle can't be distilled too dry, otherwise the residual liquid is too sticky to be poured out Stir fry as much as possible otherwise it will affect the quality of the product; The temperature of sublimation is the key point. If the temperature is too low, no caffeine will sublimate, If the temperature is too high, the caffeine will be coked, which directly affects the yield and qualitv of. the caffeine crystal• The device should be fixed with clips , kept vertical, and sealed to prevent steam from escaping; • The size of the filter paper sleeve should be moderate (the bottom size is 2.3cm*2.3cm), when put it into Soxhlet extractor, be careful not to block the edge of the siphon tube, and the height of the tea leaves in the sleeve should not exceed the siphon; • The ethanol in the bottle can't be distilled too dry, otherwise the residual liquid is too sticky to be poured out; • Stir fry as much as possible, otherwise it will affect the quality of the product; • The temperature of sublimation is the key point. If the temperature is too low, no caffeine will sublimate; If the temperature is too high, the caffeine will be coked, which directly affects the yield and quality of the caffeine crystal. Precautions & Tips