Adsorption method: let the plastic products contact and soak in a proper amount of detergent such as milk, vinegar, baking soda, light salt water, waste tea, rice soup or rice washing water, grapefruit peel, pineapple pieces (good quality), white wine, dilute sulfuric acid (poor quality). And after a certain period of time, you can remove some of the flavor.
Method of making tea: put a small amount of tea leaves into a plastic bucket, pour it into hot water, cover it, pour it out after a few hours, and scrub it with water. This can remove the odor of the new plastic bucket. You can try it.
Deodorization method of milk: firstly, clean it with detergent, then pour two tablespoons of fresh milk into a plastic bucket, shake it to make every corner of the bucket contact with milk for about one minute, and finally pour out the milk and clean the bucket.
Deodorization method of orange peel: first, clean it with detergent, then put the fresh orange peel into a bucket and rinse it for about 3 to 4 hours.