Known for its dark, velvety, delicious fruit, the blackberry is the real queen of the Polish forests and glades. It looks somewhat similar to a raspberry, but its stems are longer and have more prickles. Depending on the variety, ripening blackberries have a black, blue-black, or intensely dark blue hue. They have a pleasant, sweet flavour and a characteristic aroma.
The healthy properties of blackberries were first discovered in ancient times. Greeks and Romans, for example, chewed blackberry leaves to strengthen their gums. Leaves of wild blackberries were a sought-after ingredient of herbal mixtures. They contain quite a lot tannins, flavonoids, organic acids and vitamin C. Blackberries help to relieve heartburn, make great preserves and have only 43 calories per 100 grams to boot!
Blackberry fruits contain relatively low amounts of sugar, organic acids and amino acids, but are high in mineral compounds, especially iron, magnesium, potassium, calcium and copper. They also contain vitamins A (beta-carotene), B3 (niacin), K and P.