You can freeze heavy cream to preserve it; still, it becomes slightly grainy, and the texture separates after defrosting from frozen. Thawed frozen heavy cream is better used within baked or cooked recipes. If you whip defrosted heavy cream, you will likely get a less attractive granular texture on the surface. It does not whip as beautifully as fresh heavy cream. I recommend using fresh heavy whipping cream for the absolute best-whipped cream!