Hi @Adrienne174
*Spray vinegar onto yellow plastic bins and sprinkle baking soda over the vinegar. Respray the area until the bubbling ceases. Allow this mixture to sit on the yellowed plastic for an hour or overnight before wiping clean.
*Give them a bleach bath. Your need: Bleach / Or
1/2 cup bleach
4 cups warm water
1/4 cup baking soda
Combine the ingredients in a bowl, soak a clean cloth in the mixture and gently scrub the plastic areas of the appliance with it. Allow it to set on the yellowed appliance for 8-10 minutes.
*Transitional French ways, we keep a small pieces of ‘Charcoal ‘ in the refrigerator