Is frozen orange juice concentrate gluten free?

Yes, frozen orange juice concentrate is generally considered gluten-free. Gluten is a protein found in grains such as wheat, barley, and rye. Orange juice is made from oranges, which do not contain gluten. However, some brands of frozen orange juice concentrate may add other ingredients that contain gluten, such as wheat starch or barley malt. Therefore, it is important to check the ingredient list of the specific brand you are consuming to ensure that it is gluten-free.