Baking Soda PH Test for Acidic Soil. Test: Add your soil to the second cup, then add half a cup of water, stir, and add half a cup of baking soda.

Adding baking soda to lemon juice will raise the pH to produce a more neutral solution. Skincare. Usually, the skin has a weakly acidic pH of about 5.7.

That’s because baking soda—which is sodium bicarbonate—is a base that can, if used in certain quantities, lower the pH of an acidic solution.” —Jennifer Christman, MHA, RDN, LDN, CPT ...