How to tell the truth from the falsehood of fairy Dai Yi underwear? When I bought it back, it tasted great, especially exciting, and it smelled bad!

It tastes great. This may be the smell of packaging bags. If you soak in water below 30 degrees Celsius for about 5 to 10 minutes, be sure to use mild laundry detergent (never use high alkalinity laundry detergent). Personally, it is best to use shower gel, which is in direct contact with our skin and will not cause so much damage to underwear. Remember not to use disinfectant, which is alkaline and harmful to underwear. After washing with clear water, put it in a cool and ventilated place to dry, and don't expose it to the sun. Only when it is dry will it smell like laundry detergent.