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This coffee mug is a better version of the mug I had posted initially but this time meant to hold liquids. I based it off of a random cup in my cabinet. PLA is food grade but I would not use for hot drinks as it could go soft and melt. A standard drinkable cup of coffee is 160-190 F or 71-78 C, my guess is PLA goes soft at around 90 C so unless you use a different material that is more heat resistant like ABS I would use it for pens or cold drinks. (ABS and similar materials are not rated for food use)