How to Get Plastic Cups Unstuck: 5 Basic Tricks! - Home …
Method 1: The Hot and Cold Method. This is one of the most effective ways to unstick your plastic cups. And it's super easy! All you need is some ice cubes and a bowl of hot water. Warm running water from the sink will also do the job. For starters, put some ice cubes in the topmost cup of your stack.