How to clean the bottom of plastic mug

Plastic mug narrow mouth, mug bottom deep difficult to clean? The dirt on the bottom of the mug is not clean? Here's a clean little coup!

First prepare an egg shell, and it will crush into the plastic mug. Then pour some white vinegar into the mug. White vinegar has the function of sterilization and decontamination.

Then cover the lid of the mug. If you don't have a lid, you can wrap it with plastic mug and rubber bands. After the lid began to shake, let the egg shell and white vinegar and the glass walls of full contact, so as to clean the dirt mug.

Finally pour out the cleaned white vinegar and egg shells, and rinse the mug with water. By this method, the clean water mug is clean as before.

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