A liquid container designed to keep its contents cool as long as possible? Sounds like a the job for a dewar flask. I've left drinks out in this overnight and t

A liquid container designed to keep its contents cool as long as possible? Sounds like a the job for a dewar flask. I've left drinks out in this overnight and they were still cold in the morning: https://shop.funraniumlabs.com/products/665ml-fmj-textured-variant-rugged-stein-of-science.html https://shop.funraniumlabs.com/products/665ml-fmj-textured-v...