birch sap,South Korea Irosu price supplier

South Korea's SK irosu forestry products company representative and is made of birch in South Korea . SK Group, Korea's Chungcheong Province in the 1970s, white birch forests in the area began to promote , by 2010 the harvest of birch sap has begun .

Looking at the characteristics of birch sap

Birch sap is the sap extracted from a birch tree, such as a North American Sweet Birch or a Silver Birch. The sap is often a slightly sweet, thin syrupy-watery liquid. The tree sap contains sugars (namely xylitol), proteins, amino acids, and enzymes.

Birch sap collection is done by tying a bottle to the tree, drilling a hole into its trunk and leading the sap to the bottle by a plastic tube. A small birch (trunk diameter about 15 cm) can produce up to 5 liters of sap per day, a larger tree (diameter 30 cm) up to 15 liters per day. Birch sap has to be collected in early Spring before any green leaves have appeared, as in late Spring it becomes bitter.

Birch sap may be consumed both fresh and naturally fermented. Birch sap can also be used as an ingredient in food or drinks, such as birch beer or wintergreen flavored candy.

Concentrated birch sap is used to make birch syrup, a very expensive type of syrup mainly made from paper birch in Alaska, and from several species in Russia, Belarus and Ukraine. In Russia this tonic is used as a traditional Herbal medicine functioning as antiseptic, anti-parasitic, anti-inflammatory, and anti-itching treatment.

Fresh birch sap is highly perishable; even if refrigerated, it is stable for only up to 2-5 days. Shelf life can be prolonged by freezing or pasteurization. However pasteurization destroys some ingredients and can alter the taste of the product. Frozen birch sap is fairly stable. In Russia and Belarus commercial birch sap is usually preserved with food-grade acids, mainly phosphoric or citric one, as if some sugar is added to mask acidity, it affects the flavor less than pasteurization.