The following report on Tang Liquid Concentrate (Not Labeled GF) will inform you of the amount of gluten found in this product during testing.

General Product Information

Manufacturer: Kraft

Ingredients: Water, Citric acid, Sodium citrate, Sucralose (sweetener), Gum arabic, Contains less than 2% of natural and artificial flavor, Sucrose acetate, Isobutyrate, Yellow 5, Yellow 6, Sodium benzoate and Potassium sorbate (preservatives)

The manufacturer provides online product information. 

Ingredient and labeling information provided as a convenience only. Do not rely on this information for your dietary needs. Always read product labels before purchasing for the most accurate and up-to-date information.