Preparation materials: six lemons, 800g rock sugar and two bottles of white vinegar.

2.？ Wash the lemon and dry it. The chopping board needs to be dried without water.

3.？ Slice lemon for later use.

4.？ Just like this, a layer of lemon, a layer of rock sugar, until the jar is full.

5.？ Pour in white vinegar. White vinegar must drown the lemon.

6.？ Ok, the jar is sealed and kept in the shade for two weeks. You can take it out and drink it until the rock sugar melts. Honey can be added according to personal hobbies.

Data expansion:

Lemonade can beautify the skin, protect and whiten the skin, brighten the complexion and help to lose weight.

Drinking lemonade can also prevent and treat cardiovascular diseases, because lemonade can alleviate the role of calcium ions in promoting blood coagulation, so it can prevent and assist in the treatment of hypertension and myocardial infarction.

Lemon water contains a lot of citrate, which can inhibit the crystallization of calcium salt, thus preventing the formation of kidney calculi, and even reducing the number of stones in some patients with chronic kidney calculi. The research results published at the annual meeting of the American Urological Society also show that drinking lemon juice can increase the level of citrate in urine, and citrate can prevent minerals in urine from forming crystals in the kidneys, that is, kidney calculi.