Soak a sponge cut into 2.5cm x 3cm pieces with dishwashing detergent, bend your finger in a dogleg shape, and rub the inside of the glass to remove dirt.
Essential oils are oily, so use hot water when cleaning to make it easier to remove the dirt.
In addition, for stains that adhere and do not come off easily, soaking in baking soda or oxygen-based bleach is effective.
Q. Please tell me how to wash the glass cup.
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