First, drop a few drops of tea oil in the palm of your left hand, and rub it in circles with your right index finger until it gets hot and smells. Pure tea oil is pure, strong and has no odor. Even the gutter oil can be identified by this method, and it smells bad.
Second, take a sip of raw tea directly, pure tea oil moistens the throat, and the throat can feel obvious bitterness. The talk of "bitter tea oil" has existed since ancient times, which is of great therapeutic and medicinal value.
Third, the easiest way to master, the freezing point of tea oil is about MINUS 5 degrees, which is the edible oil with the lowest freezing point. Impure tea oil will completely coagulate if it is placed in the freezer for 3 hours, while pure tea oil will reduce its fluidity, but it will never coagulate. It begins to coagulate after standing for 6-8 hours, but it will melt quickly at room temperature, and the melting speed of adulterated tea oil is very slow. Our store has been selling tea oil for 2 years. Even if it is sent to the Northeast in winter, there will never be condensation of tea oil.