Quoting Jaquan's Mommy:" Gosh it was expensive lol. Just see. We If whipped cream is what kills you, you were gonna die anyway. Squeeze the bag to pipe out swirly designs onto the parchment paper and place the baking sheet in the freezer overnight or until each mold is … But would my whipped cream technique hit the road with ease, and make it through an afternoon cookout without making a giant soggy disaster of things? Is it still good? If you have left the cream outside during the summer months, or in a room that is at or above 75 degrees Fahrenheit, bacteria could begin to multiply in unsafe numbers in as little as one hour. But now this can of whipped cream has been out for approx 2.5 hours since it was used. Your Cup of Cake. Help! After making a frosting it is important to store it properly to, you need to store it properly to prevent spoilage. Tricia Ballad is a writer, author and project geek. The proteins in the membranes of fat molecules are stripped during the whisking process, causing the cream's fat to bond into a "skeleton" that holds air bubbles. She has contributed articles on food, weddings, travel, human resources/management and parenting to numerous online and offline publications. Of course, if you notice a sour smell, or your frosting has separated, discard it immediately.