Datacenters is why their coffee is so hot.
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Actually it is interesting why scalding coffee is better for the fast food business
Slows cooling: High heat buys time for commuters.
Masks bitterness: Extreme heat numbs taste buds temporarily.
Hides cheap beans: Lower-grade coffee tastes better when hot.
Prevents complaints: Customers rarely complain about coffee being too hot.
Reduces returns: Cold coffee gets sent back.
Reduces refills: Customers cannot chug boiling liquids.