Way one:
Prepare some fine sand and baking soda, put them into oil bottles and oil drums at the same time, then add hot water, shake hard for a while, and then rinse and clean them.
Way two:
Prepare some more eggshells, then crush them into the oil bottle, oil bucket, then add hot water and shake hard, the oil inside will come down after a few minutes, and then rinse it.
Way three:
Pour a little dishwashing detergent for brushing into the oil bottle, oil bucket, and then pour boiling water to soak for a while, and then shake a few times to pour out and rinse. If there is no oil sediment in the container, can be disposed of in this way.
A small reminder: the oil in the glass bottle is easy to wash clean, while the plastic bucket may not be washed, it does not matter, can be repeated more than once.
