Juice processing is a crucial step in the juice beverage production line. It not only impacts the juice and juice extraction rate, but also product quality and production efficiency. Juice processing involves using external mechanical force to squeeze the fruit and vegetable pulp to produce juice. This beverage production line integrates rinsing, filling, and capping functions, making it ideal for producing mineral water, distilled water, and purified water. Made of high-quality stainless steel, it is corrosion-resistant and easy to clean. It is widely used in the production of fruit and vegetable juices, primarily for fruit and vegetable juices. This beverage production line integrates rinsing, filling, and capping functions, making it ideal for producing mineral water, distilled water, and purified water. Made of high-quality stainless steel, it is corrosion-resistant and easy to clean. Depending on the temperature of the raw materials, it can be cold-pressed, hot-pressed, or even frozen. Depending on whether the pressed residue is extracted and pressed again, it can be double-pressed or single-pressed. This beverage production line integrates rinsing, filling, and capping functions, making it ideal for producing mineral water, distilled water, and purified water.

The entire machine is corrosion-resistant and easy to clean. Hot pressing involves heating the crushed pulp before squeezing out the juice. The specific nature of hot pressing is determined by the biochemical properties of the raw materials and the processing technology used to process the fruit and vegetable juice. While biochemical reactions in the raw material are very slow before crushing, they can suddenly accelerate during various chemical, enzymatic, and microbiological processes within the raw material, interacting and leading to chain reactions. A significant factor is the escape of enzyme-catalyzed oxidation reactions from the raw material. This can significantly reduce the quality of fruit and vegetable juice (in terms of color, aroma, texture, and chemical composition), primarily due to oxidation reactions, such as the color change caused by polyphenol oxidase (PPO), which affects both the pulp and the juice. Therefore, effective measures must be taken during juice processing to prevent or inhibit adverse reactions such as enzymatic browning. Therefore, when the components are broken down, the fruit is sometimes heat-treated before pressing to inhibit enzyme activity, which also inhibits microbial growth, ensuring the quality of the fruit and vegetable juice. Cold pressing, as opposed to hot pressing, involves processing the raw material after crushing, without heat treatment, and at or below room temperature. This is because both pressing methods are based on extracting soluble solids from the fruit, and the residue after the first pressing also contains a certain amount of soluble solids. To maximize the extraction of soluble solids and maximize the sugar residue content, the clear residue recovered in room temperature water or condensate is soaked in a 1:2 ratio (mass ratio) for 20 to 40 minutes (generally not exceeding 80°C) before being pressed twice. The double pressing process can increase juice yield by 5% to 10%.
- Extraction: The fruit and vegetable juice extract is transferred to a liquid extraction medium (hot water). This is primarily used for dried fruits with low moisture content, such as red dates, black plums, and jujubes, and for fruit and vegetable juices with high pectin content (such as hawthorn juice extract) produced using the above methods. Extraction methods include static extraction, countercurrent extraction, single extraction, and multiple extraction. Factors affecting extraction efficiency include extraction temperature, time, raw material content, concentration, and flow rate. Pulping: Pulping is the process of scraping and grinding the crushed fruit and vegetable raw materials through a pulping machine to separate the cores, seeds, and thin skins to obtain fruit (vegetable) pulp. The fineness of the original pulp can be obtained by selecting different mesh apertures of the blender.
