Does anyone have any current information/data on the safety of using plastic coolers as a mash tun? I have read posts on this topic, but they are a few years old. Igloo website says not to use coolers with hot liquids. Many of the homebrew online stores are selling their own versions of all-grain systems utilizing coolers. I have contacted two of them and they do not seem to have data on the construction materials. Maybe I am being overly concerned, but if I am making the effort to make my own beer at home, I don't want to increase exposure to any toxins as a result. If anyone has any updated information, I would gladly appreciate it.
Thank you.