+3 Malic Acid 2oz 400000008820 $2.99 Out of stock Quantity: 1 Add to Bag Product Details Malic Acid raises acidity levels in your wine this prevents your wine from tasting flat. One teaspoon per gallon will increase acidity by 0.1%. A good general guideline is to test the acidity of your wine with pH strips before adding. Save this product for later Favorite