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Old 07-11-2013, 02:37 AM   #15
SlowSure
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Some Italians (and Swedes) add salt to coffee grounds although it seems to be a regional variation in both countries.

There's a genetic component to which bitterness compounds you taste (in addition to other factors).

Crudely, salt can reduce the sensation of bitterness without adding sugar. There's an experiment where people taste tonic water, someone stirs in a little salt, gives it to them again and ask if it's changed. People typically report that the tonic water is sweeter (because the bitterness is reduced, the other taste profile in the water is more prominent).

I think it's one of the reasons that some people enjoy sea salt chocolate so much - the addition of salt knocks down the bitterness of the 85% or so chocolate sufficiently for them to be able to taste the rest of the chocolate.
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