Physical pressing method of camellia seeds

The physical pressing methods of camellia seed oil mainly include earth pressing, low-temperature pressing, and spiral pressing. In rural areas where tea seeds are produced, the main method is local pressing, which produces oil with high impurities, dark color, high acid value, and peroxide value. The key to low-temperature pressing is that the pressing temperature is between 70-80 ℃, which can avoid the dark color of tea oil and loss of active substances caused by high temperature. Before using spiral pressing to produce camellia oil, the camellia seeds need to be peeled in advance to prevent damage to the cake components due to the high temperature of the pressing chamber, deepening the color of the crude oil, and so on.