Sodium acetate can be most safely and easily made by combining a little sodium bicarbonate with vinegar.
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I didn’t see anything that referred to proportions. How would you guess proportions? a teaspoon of baking soda, two tablespoons of apple cider vinegar and mix with water, (with stevia) and maybe lemon juice twice a week?
I’d say 1/4 of a teaspoon of baking soda should not be a problem, and it’s encouraged for whole body inflammation:
https://freerepublic.com/focus/f-chat/3792811/posts