There are only three kinds of wood suitable for making barrels: Chinese fir, oak and cedar. Chinese fir is the first choice for traditional wooden barrel materials. Before the emergence of cedar barrel, this kind of barrel was the most common one. However, everyone who has used Chinese fir barrels knows that the service life of Chinese fir barrels is very short, often appearing in 1-2 years. And the barrel should be maintained regularly, such as brushing tung oil. Cunninghamia lanceolata has small password, loose material, great influence by temperature and humidity, difficult maintenance and white color. So the price on the market is relatively low. Oak is a kind of high-grade wood with small knots, clear texture and uniform color, which is more suitable for making wine barrels. Our common oak barrels are made of oak, but the health care effect is not as good as cedar, and it is the most expensive. Cedar wood is the most suitable material for barrel. Cedar wood is characterized by high density, hard material, small change of dry humidity, small shrinkage and expansion rate of wood, relatively durable, not easy to crack and long service life. Another reason why cypress barrels are favored by the market is that cypress wood is antiseptic, mildewproof and deodorizing, which has a natural bactericidal effect, does not generate static electricity, and has excellent heat preservation effect, and the cooling rate is only 3-5 degrees per hour. Cedar Scar is an excellent Chinese and Tibetan medicine, and its price is about 1000 yuan. It is these factors that make health shops, beauty shops and bathing and leisure centers choose cedar barrels one after another.