How long does it take for black hands from peeling walnuts to heal?

When we peel fresh walnuts, if the juice on the green skin accidentally gets on our hands, oxidation will occur and our hands will become particularly black. It will be difficult to clean at this time and requires repeated rinsing. If the time is long, it may stay on the hands for a long time before it slowly fades. To avoid this situation, you can use salt, rice vinegar or baking soda to clean.

Why do your hands turn black after eating walnuts?

Walnuts are mild in nature, sweet and slightly bitter in taste. The tannins such as tannic acid and gallic acid contained in the walnut skin will turn black after being oxidized. These black substances can be used as colorants, and are good hair dye colorants. The reason why your hands turn black after eating walnuts is because they are contaminated with these black oxides.

What to do if your hands turn black after eating walnuts

1. Natural shedding

If your skin is stained with the black oxide from walnuts, you can wash your hands and clothes frequently to slowly remove it through the metabolism of the body's own skin epidermal cells and the aging and shedding.

2. Clean with vinegar

The fastest way to remove the black stains from walnut skins on your hands is to use strong acids. However, strong acids are not suitable for human skin and will be corrosive to the skin. Therefore, experts suggest using less acidic vinegar instead. Scrub with vinegar for 5 minutes and then wash with water.

3. Grape juice cleaning

When you find black substance attached to walnuts after peeling them, you can try eating some grapes. During this period, the brown or even black color of the walnuts on your hands will be cleaned up unconsciously by the fruit acid in the grape juice. Lemon juice can also metabolize the grape juice for cleaning.

How to avoid black hands after eating walnuts

Generally, fresh, unpeeled walnuts will be stained with these black substances if you peel them with your bare hands, and they will be difficult to clean. To avoid this, you can wear rubber gloves and protect your hands to prevent your hands from turning black at the source. However, disposable plastic gloves are not recommended because they are easy to tear and will eventually stain your hands. You should choose gloves of good quality.