How to Get Watermelon Stains Out of Tupperware
- 1). Plug the drain in a kitchen or utility sink and mix 1/2 cup of oxidized bleach per one gallon of warm water.
- 2). Put the Tupperware in the sink and allow it to sit for at least 15 minutes.
- 3). Rinse the Tupperware with cool water.
- 4). Wash the Tupperware in warm water with a sponge and mild dish detergent.
- 5). Allow the Tupperware to air dry. After the Tupperware is fully dry, smell the inside of the container. If you smell bleach, you will need to rewash and dry the container again.