Review on ☕ Aiboria Insulated Glass Coffee Mugs Set by Nathaniel Collins

We like them and see that, at least for me, they become a morning cup of caffeine. This is not a travel mug and the lid is not intended to be used when drinking from a mug. .Its purpose is to simply put on a cup when you drink coffee to keep warm and not runny when you drink. The hole in the rim of the lid is designed to prevent the spoon from drinking through. If desired, it can also be used as a stand for crockery. One review says it equalizes pressure or temperature. If you have a hole, it is a defect and you must return it. Of course, they are made of durable borosilicate glass and are microwave and dishwasher safe.