Citric Acid - 1lb.
There are a bunch of different ways to use this! It just depends on what you are making. For a simple lemonade for example you just need 5 quarts water, 3 TBS lemon juice, 2 TBS citric acid and 1 C sugar (these can all be adjusted to taste)
Also can be used as a natural preservative on fruits, adding a tart/sour taste to food, natural antioxidant and more!
1 pound (16 oz) citric acid in glass pint jar