It scores an exceptional safety rating from the Environmental Working Group with the lowest level of concern about its use in household settings and the only warning being to use it safely as you would any highly alkaline substance (not undiluted on skin, not consuming large amounts, etc.). (wellnessmama.com)
These co-factors help provide alkaline substances that maintain normal acid / base balance. (drjockers.com)
Vinegar is an acid and neutralizes alkaline substances, making it an effective ingredient in your cloth diaper laundry. (diaperjunction.com)