What to do if your hands turn black after eating walnuts

The juice from the outermost green skin of fresh walnuts can turn your hands black because the walnut skin contains tannic acid, which will turn black after oxidation and is not easy to wash off. So when eating fresh walnuts, try not to get the juice from the walnut skin on your hands. If it gets on your hands, you should immediately add a little rice vinegar to wash it. If you take too long, it will be difficult 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 coloring agents and are good hair dye colorants. The reason your hands turn black after eating walnuts is because they are contaminated with these black oxides.

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 prevent your hands from turning black when eating walnuts ? Generally, fresh, unpeeled walnuts will be stained with these black substances if you peel them with your bare hands, and they are 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, it is not recommended to use disposable plastic gloves because they are easy to break and will eventually stain your hands. You should choose gloves of good quality.