Citric Acid Punch - cooking recipe

Ingredients

1 (48 oz.) can pineapple juice
2 c. sugar
2 oz. citric acid (purchase at drug store)
1 (16 oz.) can frozen orange juice
20 c. water

Preparation

Mix citric acid with sugar.
Add pineapple juice and frozen orange juice; mix well.
Add up to 20 cups water.
Chill well and serve.
Can be made several days ahead.
Tastes best if frozen and served slushy.