Method 1: Prepare more egg shells, then crush them into oil bottles and oil buckets, then add hot water and shake vigorously. After a few minutes, the oil inside will come down, and then rinse it again.
Method 2: Prepare some fine sand and baking soda, put them in an oil bottle and oil bucket at the same time, add hot water, shake it vigorously for a while, and then rinse it off.
Method 3: Pour a little dishwashing detergent into the oil bottle and oil bucket, then pour it into boiling water for a while, shake it a few times, pour it out, and rinse it. This can be done if there is no oily sediment in the container.
Method 4: Pour one or two rice into the oil bucket, pour some detergent and water (not too much water), and then shake the oil bucket vigorously (up and down, left and right), so that the rice can be ground on the inner wall of the oil bucket. See that the inner wall of the oil drum is clean, pour out the rice and rinse it with clean water. If it is still not clean, use the above method to wash it again.
