There could be a few reasons why using Dawn dishwashing liquid makes your sponge smell bad:
Residue buildup: Over time, dishwashing liquid residue can accumulate in your sponge, especially if you don't rinse it thoroughly after each use. This buildup can create an environment where bacteria and food particles can thrive, leading to unpleasant odors.
Bacteria growth: Sponges are porous and can trap moisture, providing an ideal breeding ground for bacteria. If you don't allow the sponge to dry properly between uses, bacteria can multiply rapidly and cause foul smells.
Long-term use: Even with proper care, sponges have a limited lifespan. After extended use, a sponge can start to break down and become less effective at resisting odors.
Sponge material: Some sponges are more prone to retaining odors than others. Low-quality sponges or those made from materials that are less resistant to bacterial growth may develop unpleasant smells more quickly.
Food particles: If you use your sponge to clean up greasy or food-laden dishes without properly rinsing it afterward, food particles can get trapped in the sponge and lead to odor issues.
To minimize or eliminate the bad smell from your sponge while using Dawn dishwashing liquid, consider the following tips:
Rinse thoroughly: After each use, rinse the sponge thoroughly under running water to remove any soap residue and food particles.
Squeeze out excess water: Make sure to squeeze out as much water as possible from the sponge after each use and store it in a well-ventilated area to allow it to dry completely.
Microwave or sanitize: To kill bacteria, you can microwave a damp sponge (make sure it's not completely dry) for about 1-2 minutes to sanitize it. Alternatively, you can use a solution of water and vinegar to soak and disinfect the sponge.
Replace the sponge regularly: As mentioned earlier, sponges have a limited lifespan. Replace your sponge every few weeks or when it starts to show signs of wear and tear or persistent odors.
Allow air drying: Avoid leaving your sponge in a closed container or on a damp surface, as this can promote bacterial growth and odor.
Consider alternative materials: If you find that traditional sponges consistently develop a bad smell, you might explore other options like silicone scrubbers, dishcloths, or brushes, which may be less prone to trapping odors.
By following these practices, you can help keep your sponge cleaner and fresher, even when using Dawn dishwashing liquid.