First, vinegar is made from starchy grains (sorghum, yellow rice, glutinous rice, indica rice, etc.). ) as the main material, supplemented by rice bran and rice husk fermentation. Generally divided into black vinegar and white vinegar. White vinegar, famous for its white color, is made of glutinous rice through koji-making, soaking, cooking, saccharification and fermentation and alcohol fermentation for several months. It is a special condiment for cooking and can also be used as medicine. The amino acids contained in white vinegar can not only consume the fat in human body, but also make the metabolism of sugar and protein go smoothly.

Second: the specific production method.

1, preparation materials: 1 wide-mouth glass bottle, 4 lemons, and 400g rock sugar. Note that the jar is scalded with boiling water 1 day in advance, and then turned upside down to dry naturally. After washing the lemon, be sure to dry it with kitchen paper (it is very important, otherwise it will grow small mildew spots later), cut it into thin slices and remove the head and tail.

2. Put a layer of lemon and a layer of rock sugar, and repeat this step until the bottle is filled to about 3 cm. The vinegar must be white vinegar. Fill it slowly and cover it with lemon.

3. Cover and store in the shade. Generally, rock candy can be eaten after 2 weeks of melting.

Third: Matters needing attention

Don't touch the water, and you must use a dry spoon in the future to avoid being damp and moldy.