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If you are serious about your morning beverage, you must have a vacuum thermos. Heat transfer requires a medium, such as air, or no transfer can take place. By placing an area of genuinely empty space around your coffee, you guarantee that heat cannot be lost in that direction. In other words, you're likely to still burn your tongue drinking it on the way to work, but when you hit your mid-afternoon siesta time your caffeine delivery system should be tuned just right.
Now look at the circles in the photo and meditate upon the role of caffeine in your work. |
