Compared with the use, the residue of detergent is more worthy of attention. Detergent is synthesized by sodium alkylbenzene sulfonate, fatty alcohol polyethylene and other chemical components. Because these chemical components are not necessary for human body, it is inevitable that there will be trace residues after use. Authorities believe that the residues of detergents accumulate in the body for a long time and are harmful to human health. Therefore, it should be noted that:
Detergent is harmful to the skin, so the contact time should not exceed 40 minutes at a time (rubber gloves can be worn before washing), and then rinse with water after use. It should not be used when the skin is damaged.
Detergents can be used to wash dishes in the following two ways:
1. Dilute the detergent with water to 200 ~500 times, soak it for 2 ~ 5 minutes, scrub it with sponge or rag, and then rinse it with running water.
2. Pour the detergent directly on the sponge or rag, dip it in a small amount of water, then scrub the tableware (pay attention to wearing rubber gloves), and then rinse it with running water.
It is suggested to adopt the second washing method, which has high washing concentration and good washing effect, even for heavy oil stains.
The steps of cleaning fruits and vegetables are as follows: firstly, rinse off the dirt on the surface of fruits and vegetables with clear water, and then add detergent to soak for 5 ~ 10 minutes. Pay attention to the concentration of detergent at about 0.2%, or use it according to the instructions of detergent. Soaking time should not be too long, so as to avoid excessive penetration of detergent into fruits and vegetables, leading to the loss of vitamins and the decline of nutritional value. After soaking, rinse with running water for 2 ~ 3 times, and then select and cut the fruits and vegetables.