A Scientific Run-Down of Coffee Blooming

Re:A Scientific Run-Down of Coffee Blooming by CoastalCoder on Wednesday May 08, 2024 @08:26PM (#40304068)

One coffee phenomenon I'm curious about: why does old coffee get cloudy?

On the day I brew it, it's a dark brown translucent.

But if I leave it in the pot overnight, it's definitely more opaque.

My wife claims it tastes the same as the day before.

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Re:A Scientific Run-Down of Coffee Blooming by tptacek on Wednesday May 08, 2024 @08:51PM (#40304194)

I assume it's just the emulsion breaking.

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Re:A Scientific Run-Down of Coffee Blooming by ailurooo on Thursday May 09, 2024 @08:34AM (#40307541)

fresh coffee has a distinct taste. Maybe your wife is just used to day old coffee lol

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Re:A Scientific Run-Down of Coffee Blooming by CoastalCoder on Thursday May 09, 2024 @10:36AM (#40308661)

> fresh coffee has a distinct taste. Maybe your wife is just used to day old coffee lol

I can definitely taste the difference, and I much prefer fresh coffee.

She just can't taste the difference for some reason. Which surprises me, because AFAIK her sense of taste is otherwise normal.

One difference might be that I strongly notice "bitter" and find it unpleasant. Maybe bitterness is one of the key differences in stale coffee?

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