How do you separate a double wall cup?

Answer 1

To separate a double wall cup, you can try gently heating the outer layer with warm water or a heat gun, which can cause the materials to expand slightly. Alternatively, you can place the cup in the freezer for a short time; the contraction of the inner layer may help loosen the two walls. If these methods don't work, you can carefully insert a thin utensil, like a butter knife, between the layers to pry them apart, taking care not to damage the cup. Always handle with caution to avoid injury or breakage.