My grandchildren love apples cut into wedges for snacking. Unfortunately, apples are on the list for ‘dirty’ fruits due to pesticide residue. The apple my youngest grand-daughter is holding in the photograph is an organic Gala apple. If it was not grown organically I could remove most of the outer pesticides by a baking soda soak. Washing away what has been absorbed by the inner fruit is pretty much impossible.
“The longer pesticides sit on fruits and vegetables, the deeper they’re absorbed, and the harder it is to remove them, he says…consider submerging your produce in a solution of one teaspoon of baking soda and two cups of water for two minutes or more (the longer you soak, the more chemicals you get rid of). Rinse in tap water again before eating.” ~ Consumer Reports/Easy Way to Remove Pesticides.
I also put baking soda to use when removing soap scum from vases. I try soaking first in bleach, but if that doesn’t work I sprinkle in a little baking soda and add straight white vinegar. Be prepared for some quick foaming action.
This is a good trick if you misplace your bottle brush. (Mine is hiding from me right now.) If needed, I will repeat the steps until the scum is gone.