1. Dilution: The thawed concentrated juice is diluted with purified water according to the formula requirements.
2. Filtration: Remove suspended solids and impurities in the juice, so that the diluted juice can be clear and transparent.
3. Homogenization: Homogenize the diluted juice to make the juice uniform and stable. Homogeneous pressure requirement: 20-25MPa.
4. Sugar dissolving and filtering: carried out in the sugar dissolving tank. Start the blender, add the right amount of water, and add the white sugar according to the formula. There are two ways to dissolve sugar, hot melt and cold melt, one of which can be selected according to the needs of the production process. Diatomaceous earth filtration is generally used for the filtration of sugar liquor. The dissolution and filtration of other auxiliary materials is basically the same as that of white sugar.
5. Blending: Pump the diluted juice, the dissolved and filtered sugar solution, and the dissolved and filtered auxiliary materials to the blending tank to mix them evenly and make the volume constant. Add flavors and (or) pigments according to the formula and mix well.
6. Filtration: Filter the mixed material and liquid through the filter barrel connected to the pipeline again to completely remove the possible suspension. To ensure the transparency, uniformity and no precipitation of the product.
7. Washing: The bottle passes through the bottle washing machine to fully clean the dust and dirt that may exist in the bottle. In order to ensure the cleaning effect, the pure water pressure required for cleaning is not less than 0.4MPa. Bottle cleaning is often combined with filling and capping to form a "three-in-one" filling machine.
8. Sterilization: Pass the filtered material liquid through the UHT sterilizer to sterilize the material liquid. Sterilization conditions: 130-135°C, 4-6 seconds. When sterilizing, make sure that the steam pressure supplied to the sterilizer is not less than 0.8 MPa.
9. Pouring the bottle: Pass the hot-filled product through the bottle-inverting machine immediately, turn the bottle upside down, and let the residual temperature of the material liquid after filling sterilize the bottle and the cap to ensure the quality of the product.
10. Filling and capping: There are mainly two methods of aseptic cold filling and aseptic hot filling. In order to ensure the quality of fruit juice beverages, aseptic hot filling is often used. The requirements: the temperature during filling should not be lower than 90℃, and the temperature in the bottle after filling should not be lower than 85℃. It must be capped immediately after filling. When capping, adjust the proper torque of the capping head to ensure a tight seal. "Three-in-one" hot-filling machine for bottle washing, filling and capping.
11. Light inspection: Let the product pass through the light inspection machine to check whether the bottle has dirt, impurities, whether the bottle seal is complete, etc., to ensure that the qualified product enters the next step.
12. Cooling: Let the product pass through the cooling tunnel to make the temperature of the product drop to (38±2)℃ quickly. More damage. Less investment in hot-filling equipment.