Clean grease with hot salt water
- Step 1: Mix salt with hot water in the ratio of 1 liter of water to 3 teaspoons of salt. Depending on the number of boxes, you mix the appropriate amount of solution.
- Step 2: Soak the plastic box in hot salt water for about 10 minutes and then take it out and wash it with dishwashing liquid.
- Step 3: Use warm water to rinse the plastic box more clean.
This method is quite simple because all the ingredients are available at home.

Clean grease with Lemon
- Step 1: Cut a fresh lemon in half and rub the grease spots.
- Step 2: Rub the lemon into the plastic box, then leave it for about 1-2 hours.
- Step 3: Rinse with dishwashing liquid and clean water to remove grease.

Clean grease with vinegar
- Step 1: Use tissue to soak in vinegar and then wipe the plastic box all over.
- Step 2: After wiping, leave for about 3 minutes and then rinse with dishwashing liquid.

Clean grease with baking soda
- Step 1: Dissolve baking soda with water in a ratio of 3:1.
- Step 2: Apply the mixture on the plastic container and leave it overnight.
- Step 3: Rinse with dish soap and clean water the next morning.

To clean grease stains on plastic containers takes a lot of time and effort, but just grasping the above tips will make it extremely easy. Please apply these methods to your family's plastic boxes.