Plastic containers
To store leftovers, nothing beats plastic containers. But if you want to reheat them in the microwave, make sure the dish is designed for it. If you don’t, there’s a risk you’re ingesting chemicals. According to Harvard Medical School, reheating leftovers in an unapproved dish carries health risks. Compounds such as BPA and phthalates (endocrine disruptors) can leak into fatty foods such as meat and cheese.