1. Baking soda when it smells

Put baking soda in a tumbler and pour hot water.

Soak a lid in hot water.

After 30 minutes, rinse the tumbler and the lid with water thoroughly.

2. Excellent citric acid for removing water stains

Put citric acid in a tumbler and pour hot water.

Wait until the water cools down then close the lid and shake it.

Rinse them with water thoroughly.

3. Eggshells to remove scraps everywhere

Put crushed eggshells and lukewarm water in a tumbler.

Close the lid and shake the tumbler. Then rinse them with water thoroughly.

4. Vinegar for removing red spot inside a tumbler

Pour the diluted vinegar in a 1:9 ratio into a tumbler.

After 30 minutes, rinse the tumbler with water thoroughly.