{"id":1767629,"date":"2022-05-23T11:56:02","date_gmt":"2022-05-23T16:56:02","guid":{"rendered":"https:\/\/www.tasteofhome.com\/?p=1767629"},"modified":"2023-11-24T03:45:35","modified_gmt":"2023-11-24T09:45:35","slug":"can-you-microwave-cardboard","status":"publish","type":"post","link":"https:\/\/www.tasteofhome.com\/article\/can-you-microwave-cardboard\/","title":{"rendered":"Can You Microwave Cardboard?"},"content":{"rendered":"It's the end of the workday. You're exhausted\u2014and ready to flop down on the couch and stream the new Julia Child series on HBO Max. It's the perfect night to pop leftover takeout into the microwave. But can you microwave cardboard?\r\n\r\nThe good news: you probably<\/em> can. But it's best to spend a few extra seconds checking what your container is made of to keep your food, and your microwave, in tip-top shape.\r\n\r\nLearn how to microwave leftovers<\/a> the right way.\r\n

Is It Safe to Microwave Cardboard?<\/h2>\r\nIf you're using microwave-safe cardboard (meaning cardboard that is pure cellulose), then you can microwave it for short periods of time. Just keep it between 60 and 120 seconds, and check every 30 seconds to reduce the risk of overheating the cardboard. Keep your microwave on a low power setting, too.\r\n\r\nBut if you need to heat something up for longer, it's a better bet to transfer the food to another microwave-safe container. Why? Because cardboard is flammable, especially at temperatures of over 400\u00b0F or for prolonged periods of time\u2014this causes the moisture level in the cardboard to drop, making it more likely to catch on fire.\r\n

Can a pizza box go in the microwave? <\/strong><\/h3>\r\nPizza boxes are generally safe to pop in the microwave, as long as you can find a microwave-safe label or written instructions. While many brands make boxes that can be reheated safely, others might include plastic or metal. (Learn whether you can put aluminum foil in the microwave<\/a>.)\r\n

Make sure the box is in the microwave for less than a minute. (And let's be honest, there are plenty of other delicious ways to reheat pizza.<\/a>)<\/p>\r\n\r\n

Types of cardboard you can't microwave<\/h3>\r\nHere are the common cardboard containers you should not<\/em> microwave:\r\n