Insulated Flask 500ml

cults3d

A 500ml flask with an insulating chamber of air to reduce heat transfer. More of a design challenge than a practical object, for obvious reasons. If you choose to use as a container for drinks, I recommend only using for COLD liquids, as anything hot may (A) melt the plastic, (B) cause expansion of the insulating space leading to rupture, and (C) release more toxic stuff. I also recommend sealing the inside with food-grade epoxy (it exists!) to reduce transfer of chemicals into your drink. Use at your own risk; I'm no toxicologist or chemist. Word has it plastic is not health food.