Going from Baking soda as pesticide from @ramesh made me think about using it to wash your produce. & unlike chemicals, you can consume baking soda & vinegar. Baking soda is great for upset stomachs!
Since there are different ratios & different plants, I'll just post a link:
DIY Wash
Since there are different ratios & different plants, I'll just post a link:
DIY Wash