1, lemon contains limonin:

Lemon contains an ingredient called limonin, which is very high in citrus fruits, and lemon is the highest content. Some lemon varieties contain a lot of this bitter ingredient, so the water will contain bitterness when brewing.

2. The wrong method of brewing lemon will lead to:

If you feel particularly bitter when eating lemons, besides the variety problem, it may be that the soaking method of lemonade is wrong. Soaking lemons in hot water will be more bitter than soaking lemons in cold water.

3, lemon peel contains natural oil:

Lemonade feels bitter because the skin of lemon contains a layer of natural oil, which is slightly bitter. You will feel bitter if you don't wash off this layer of oil when soaking in water. It is suggested that lemons should be soaked in salt water 15min before lemonade, and then washed with clear water.

Extended data

The efficacy of lemonade:

Fresh lemon soaked in water, because it is extremely rich in vitamins, is a beauty product, which can prevent and eliminate skin pigmentation and play a whitening role.

Lemon is rich in vitamin C, which can fight colds, and it is also rich in potassium, which is very helpful for controlling hypertension. Vitamin C in lemon has more anti-inflammatory effect and can be used for adjuvant treatment of respiratory symptoms such as asthma.

Phoenix. Com: For these reasons, lemons are bitter in water.