With the help of joyofbaking.com, I learned that heavy cream and heavy whipping cream are essentially the same thing: cream that contains 36 percent or more milk fat. Whipping cream is a bit lighter, with only 30 percent milk fat.
Heavy cream will whip better and hold it’s shape longer than whipping cream. Therefore, it is recommended more for piping, pastry fillings, and toppings. Whipping cream will still whip well, but it is likely to lose it’s loft and become liquid again more quickly.
Test Kitchen TIP: Chill your cream, bowl, and beaters before making whipped cream for a faster and better end product.