this post was submitted on 19 Jan 2025
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[–] [email protected] 1 points 2 days ago* (last edited 2 days ago) (1 children)

I don't think salt modified the acidity, though. What they do is activate the salty receptors which share nerve pathways with bitter receptors, so you detect less of the bitterness in the coffee.

Edit: I can't find any reputable sources for the sharing nerve pathways part, but a couple of paper abstracts I found do show that saltiness suppresses our ability to detect bitterness.

[–] naticus 1 points 2 days ago (1 children)

Yeah I think you're probably right. Still can make things more palatable for some, but not because of changing acidity.

[–] [email protected] 1 points 1 day ago (1 children)

In the same paper abstracts, they also mention how bitterness itself suppresses sweetness, so by suppressing bitterness with salt, you also make any sweet notes in the coffee stand out better. This might be another reason why salt makes it more palatable.

[–] naticus 1 points 1 day ago

Yeah, I know that salt suppressed bitterness from my own experiences because I cannot handle bitter very well at all, never have been able to. Salt gives sweet things a really interesting dynamic and I'm glad things like salted caramel have become popular recently. So yeah, I'd say that all tracks.