Cold-pressed juice
After extracting juice from fruits and vegetables, the juice may be consumed raw, or the manufacturer may choose to put the juice through a preservation method such as HPP in order to extend shelf life and kill potentially harmful microorganisms. The HPP process allows the juice to be stored for about 30 days.
Hemp juice
The preferred procedure is to freeze the freshly cold-pressed juice instantly for preservation. The quality of the juice depends on immediate freezing. The frozen juice can be freeze-dried into a storable powder. Freezing and freeze-drying stabilize the natural form of the cannabinoids as cannabinoid-acids. Another procedure is pasteurization. The ultra-heat-treatment will "activate" the cannabinoids by separating the acid part from the natural cannabinoids. Increasing shelf life of hemp juice can also be achieved by fermentation, using various procedures, preferably by adding yeast/yeast extract and sugar. Using salt is a proven procedure to achieve storability in foods. With regard to hemp juice this can be done by mixing salt with fresh hemp juice, which leads to an easily usable product: "hemp salt".