Why does your Parmesan cheese clump when it melts?

Parmesan cheese does not typically clump when it melts. It generally melts smoothly and evenly if used and melted correctly. If parmesan cheese is allowed to overheat or is melted too quickly, it can clump or become grainy in texture. To avoid clumping, ensure that you slowly and gradually melt the cheese, stirring constantly until it's fully melted and integrated into the dish.