1. Firstly, prepare a basin of warm water and add appropriate neutral laundry detergent to the water.
2. Soak the down jacket inside for 10 minutes before starting cleaning. Don't rub clothes with your hands. Use a soft bristled brush or unused toothbrush to brush back and forth in important and less dirty areas. You can also dip some toothpaste in the middle to scrub.
3. After brushing, do not squeeze the water like twisting Fried Dough Twists, just squeeze it down. After that, use clean water once.
4. When cleaning for the second time, just drop a few drops of white vinegar into the water. Soak the down jacket in it for 5-10 minutes, then take it out and squeeze it out with both hands along the pattern to hang and dry.
5. Clean clothes should be placed in a well ventilated area. After drying, use a large hanger to pat them, and you will find that the clothes not only turn white but also soft.