Can You Microwave Starbucks Cups? (What To Do Instead) Starbucks coffee is all about convenience, so you should be able to just pop your cup of coffee or other hot drink in the microwave to reheat, right? It’s complicated, however, because Starbucks cups are marked “Do Not Microwave.” Continue reading to learn more about what you can do. Are Starbucks Cups Microwaveable in 2022? Starbucks cups have a “Do Not Microwave” warning printed on them, which means Starbucks cups cannot be re-heated in the microwave due to their internal plastic lining. You can pour your remaining Starbucks drink in a…