Because of vitamins c, b, etc. It begins to decompose when exposed to heat, and will be automatically discharged from body fluids after 4 hours. After boiling 12 hours, vitamin C is basically soluble in water.

However, from the perspective of traditional Chinese medicine, lemon cream has the functions of clearing and moistening throat, resolving phlegm and relieving cough, and improving immunity. Because lemon peel contains a lot of nutrients that are not easy to decompose, including hesperidin, quercetin, limonin caffeic acid, sitosterol and so on.

Extended data:

Crystal sugar lemon cream is a new formula for detoxifying and resolving phlegm. Unlike ordinary rock candy, lemon is slightly cool. Stewed with a certain proportion of brown sugar and water can complement each other. Lemon no longer stimulates the stomach and light sensitivity. After yellow rock candy and brown sugar are stewed with water, impurities and excess sugar can be precipitated, which is suitable for most people, pregnant women and babies.

Modern enzyme production methods were introduced from abroad, and a certain proportion of brown sugar/brown sugar and fruit and vegetable meat/skin were used for static fermentation. This method is rough, easy to breed bacteria and microorganisms harmful to human body, with many impurities and large particles. It is not recommended to take it directly. ? [ 1]? In ancient Chinese medicine, there were prescriptions for clearing blood and detoxifying, but there were no enzymes. It is called red and yellow crystal sugar lemon cream, which can stimulate growth and development by dredging meridians, clear toxins in blood, inhibit improper appetite, promote fluid production and quench thirst, and has the functions of sterilization and anti-inflammation. Its color is clear and transparent, and its taste is delicious.

Reference link: Baidu Encyclopedia-Lemon Cream