Add lemon juice: Before washing the white cotton T-shirt, soak it in water with lemon juice for 10 minute before washing, which can make the clothes whiter. Skim milk: soak the white silk T-shirt in milk for 5 minutes before washing, or soak it in milk when rinsing to prevent it from turning yellow. Orange peel water: soaking orange peel boiled soup and washing clothes can make clothes as white as new. Taomi water: washing yellow clothes with Taomi can help white T-shirts turn white.

1. alum addition method: when washing high-grade clothes, a small amount of alum can be added to the water to reduce the fading of clothes.

2. Pickling method: When washing patterned white T, add 1-2 spoonfuls of vinegar to detergent to prevent clothes from fading.

3, add lemon juice method: before washing the white cotton T-shirt, soak it in water with lemon juice 10 minutes before washing, which can make the clothes whiter.

4, skim milk soaking method: white silk T-shirt before washing, first soak in milk for 5 minutes or soak in milk when rinsing to prevent yellowing.

5, orange peel soaking method: soak orange peel in yellow soup and wash clothes, which can make clothes as white as new.

6, Taomi water washing method: washing yellow clothes with Taomi water can help white T-shirts turn white.

7. Spinach soaking method: put it in boiled spinach water and wash it, then soak it for 10 minute and then wash it, then you can remove the yellow stains and restore whiteness.