Bad louvers will stink.

In addition to the heavy odor of the louvre, you should rub it repeatedly to clean it. When you wash it, you need to rub it with salt and vinegar together and repeat three times. Or use salt and flour, rice flour can also be rubbed together, can be washed very clean without odor.

And the common market snow-white beautiful cow leaves are mostly used chemical methods: first soaked with caustic soda, then bleached with hydrogen peroxide, so that the cow leaves, although white and flawless, but harmful to the human body.

What is the color of the cow leaves

Normal cow leaves are divided into two colors, yellow, black. And the reason why these two kinds of beef lily are different colors is because of different feeding. Cattle that are raised on feed have yellow colored leaves. While cattle raised on grass, grain, etc., have black, gray or brown lobes. Therefore, there is no difference between these two types of cow louvers, and it also identifies the environment in which the cow was raised.

White cow thyrsus is abnormal. Some people buy white louvers, some people buy black louvers, but it's better to buy black beef lily. Fresh lily leaves are black. It has a faint odor and a black film that is not easy to remove. Some traders bleach the leaves with bleach in order to preserve them for a long time, soak them with kerosene and hydrogen peroxide lime, and formaldehyde bleached leaves can cause cancer. It's best to buy black leaves and eat them.