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by kijin
658 days ago
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It's more about time than the final temperature. When you pour hot tea into an empty cup, the innermost layer of the cup goes from room temp to ~80C within a fraction of a second. When you pour hot tea into a cup that already contains a fair amount of milk, it goes from $milkTemp to ~60C gradually over a few seconds as the tea mixes with the milk, giving enough time for the cup to expand evenly. |
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