STEP 1/5
Prepare the skin from one onion
STEP 2/5
Dissolve 1 tablespoon of vinegar in water, soak the onion skin for 10 minutes, and wash it two or three more times
STEP 3/5
Add washed onion skin to 1.5L water and boil over high heat
STEP 4/5
When the water boils, lower the heat, simmer for another 20 minutes, and remove the onion skin
STEP 5/5
One drink a day can help your blood vessels
If you boil the onion peel for a long time, it tastes bitter
Boil for 20 minutes and remove
Drink onion peel tea, and if the gas is cold or uncomfortable, drink it lightly by diluting it with water
Don't drink too much because one glass a day is enough