Flash-frozen natural product. Storage conditions: store at a temperature not higher than minus 18°С and relative humidity not more than 95%. Shelf life: 24 months from the manufacture date. Dewberry contains a full range of nutrients and medicinal substances, including sucrose, glucose, fructose (up to 5%); citric, tartaric, malic, salicylic and other organic acids; vitamins B, C, E, K, P, PP, provitamin A; mineral substances (salts of potassium, copper and manganese), tannins and aromatic compounds, pectin substances, fibers and other macro- and minor elements. Moreover, the blackberry fruit also contains such minerals as sodium, potassium, calcium, magnesium, phosphorus, iron, copper, nickel, manganese, molybdenum, chromium, barium, vanadium, cobalt, strontium, titanium. Blackberry leaves are rich in tannins (up to 20%), (mainly leukoanthocyanids and flavonols), vitamin C (ascorbic acid), amino acids and minerals. Blackberry seeds contain 12% of fatty oil. Fresh blackberries are used in folk medicine to strengthen the organism and to saturate it with vitamins. In case of atherosclerosis it is useful to consume dewberries in any form. Eating blackberries helps to optimise blood composition.