Loading A Hot Summer Cold Beverage Mug Summer Vacuo

You are right to keep cold. Just imagine how convenient it is to bring a glass of cold drink when you are out in the hot summer. For example, take a glass of cold water out and add some ice cubes and some lemon. Then you can drink your own iced lemon tea anytime, anywhere. It's really uncomfortable! You can also put the brewed coffee or brewed milk in the refrigerator first, and pour them into a vacuum flask after they are cold, and then take a sip when you want to drink it when you are out, to quench your thirst and relieve the heat.