Gluten-free kinds of pasta can be tricky. Depending on what your pasta is made of, it may be more likely to stick together. This is usually the case with rice pasta. Rinse your gluten-free pasta under cold water for at least a minute and then pat it dry with a paper towel. It will be drier than non-gluten-free kinds of pasta. When you go to reheat it, use some sort of liquid.