"Plastic is an increasingly confusing product. There are hundreds of kinds and little research regarding most uses. Some are safer than others (e.g. those numbered 2, 4, and 5), but truly the safest way to store food is in stainless steel or glass. Make the switch to glass easily by reusing spaghetti sauce or salsa jars for food storage! If you do opt for some plastic, it's best not to microwave food in them as heat promotes leaching. You also have to be careful using them to store warm, fatty, or acidic foods which can all promote leaching, as well."
Know Your Food-Storage Options
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