From the Syracuse Salt Company website...
What is black lime, you ask? Ripe limes are dried in the sun until they oxidize, turning black and savory, adding a touch of sourness. Add in some Black Urfa Chili flakes and our crisp Flake salt, and you get an earthy, slightly citrus-y kick with a hint of heat.
This particular salt is proudly in collaboration with our friends at Burlap & Barrel, a Public Benefit Corporation which partners directly with smallholder farmers to source spices that have never been available in the US before and help improve the livelihoods of their partner farmers. Both Black Lime and Urfa Chili spices used originate in Guatamala and Turkey.