1. Slice the lemon and remove the skin (because it will be slightly bitter if the skin is not removed).

2. Roll the cut lemon slices into rolls and stuff them into bottles, or put them into containers such as thermos cups and cups.

3. Make a pot of hot water and wait 1~2 minutes. Don't soak lemons in boiling water, wait 2~3 minutes after boiling.

4. soak in a cup or bottle, wait for 3~5 minutes, and you can drink it.

If boiled water is used, it will be bitter, and cold water bubbles will not taste easily and stimulate the stomach. The same proportion of water, too many lemon slices will be bitter.