For those who actually want to know why water left over night tastes bad, it’s because there’s dissolved gases in a fresh glass of water which contribute to the flavor. Letting it sit out lets it off-gas so it tastes stale.
This is similar to why coffee left out tastes stale. The aromatics off-gas changing the flavor.
I always though that the flavour compounds get oxidized in stale coffee, hence the taste. Also, wouldn’t offgassing occur in vacuum packed coffee as well? There’s got to be many VOC-s in coffee that can escape though, so I don’t know.
wouldn’t offgassing occur in vacuum packed coffee as well?
How? Sealed container wouldn’t release it to the environment.
Off gassing is escaping from the liquid coffee into the environment. If you have bought a sealed coffee in vacuum, it’s sealed! If you open the seal and walk away for a day to allow the off gassing…
So, it has to get in contact with air then? Wouldn’t that be a different phenomenon? I mean if coffee would just be releasing gasses on it’s own, wouldn’t the pack be puffy after a while? Keep in mind, I’m dull and thick as a brick.
For those who actually want to know why water left over night tastes bad, it’s because there’s dissolved gases in a fresh glass of water which contribute to the flavor. Letting it sit out lets it off-gas so it tastes stale.
This is similar to why coffee left out tastes stale. The aromatics off-gas changing the flavor.
I always though that the flavour compounds get oxidized in stale coffee, hence the taste. Also, wouldn’t offgassing occur in vacuum packed coffee as well? There’s got to be many VOC-s in coffee that can escape though, so I don’t know.
How? Sealed container wouldn’t release it to the environment.
Off gassing is escaping from the liquid coffee into the environment. If you have bought a sealed coffee in vacuum, it’s sealed! If you open the seal and walk away for a day to allow the off gassing…
So, it has to get in contact with air then? Wouldn’t that be a different phenomenon? I mean if coffee would just be releasing gasses on it’s own, wouldn’t the pack be puffy after a while? Keep in mind, I’m dull and thick as a brick.
Something about taste evolving to avoid stale water as it was breeding grounds for ucky yucky but I don’t have a source