Potato products may be both gluten free or those that have gluten in them. Hungry Jack’s mashed potatoes box are made with all potatoes and they are gluten-free according to the Hungry Jack’s. This means that they do not include ingredients that have wheat flour in them. Some labels have simply flour on their labels. This means that they are not gluten free. However, this box of mashed potatoes does not have that on their label.
They must use different flour or no flour at all. Since they claim to use 100% real potatoes, the only ingredient in the box may be potatoes and a few seasonings or preservatives. There are other potato boxes including cheesy hashbrown potatoes which serves a large family.