There was a different study earlier this year on hacker news about the storage items - cling wrap and plastic containers, those materials all leach into food at

There was a different study earlier this year on hacker news about the storage items - cling wrap and plastic containers, those materials all leach into food at different rates depending upon the temperature, acidity of food, and length of exposure contact - hotter and more acidic and longer means more leaching. It's non-zero but the danger level is anyone's guess at this point.