Surely you never expected this special use of onion shells. Onion peels contain no color molecules, helping you to have natural, safe hair color without damaging your hair.
You only need to boil a small handful of onions in water for about 5 minutes. Cover the pot and wait for the water to cool completely. Strain out and take part of the water to wash your hair. Leave on for a few minutes then rinse with clean water. For the best effect, you can perform this operation one more time.
Killing fungi and insects for plants
The onions have a fragrant scent that makes insects run away. You can use the bark to treat fungus and insects for your family's garden by mixing 100gr of onion peel with 500ml of water in a covered jar. Store in a cool place for 7 days and then use.
When using, dilute the onion skin with clean water in ratio 1:10. Spray the solution evenly over the entire plant to kill fungi and insects.
Like other fruits and vegetables, onions can also be used to make organic fertilizer for plants. The simplest way is to bury the onion shells on the ground so that they decompose naturally.
Used to bake bread
Onion peels function as a dye. When making bread, you can add a little bit of onion peel. The bread will be more attractive and glossy yellow.
Add flavor to the soup
For a long time when cooking soup, you still only use onions to cook soup but ignore the skin. It is a waste. The rind after being washed into soups can make the dish more delicious and sweeter than usual.