Newly-bought ones usually smell like plastic. If you are not at ease, you can clean them with vinegar first, and then boil a pot of water.

1, you can connect half a pot of tap water with a plastic kettle, add 2 tablespoons of salt, and keep shaking (up, down, left and right) several times. Boil the salt water again, and it will be much better after repeated times. Because there are small particles after the salt is dissolved, they can wash the small holes on the plastic surface and achieve the effect of deodorization. It's not good to use vinegar to get rid of the smell. Strong acid will only corrode the plastic wall and make it taste heavier.

2, milk deodorization method: first clean it with detergent, then pour two spoonfuls of fresh milk into the plastic kettle, cover it, shake it, so that every corner of the kettle is in contact with the milk for about one minute, and finally pour out the milk and clean the kettle.

3, orange peel deodorization method: first clean with detergent, then add fresh orange peel, cover, rinse for about 3 to 4 hours.