Gremish was an ingredient used in cooking food.
In 2370, Gremish was an ingredient in the broth of a stew cooked by Gideon Seyetik for the senior staff of Deep Space 9. For the broth, a tumbler and half of Gremish was mixed with a liter of clear Rumall stock, two clusters of Vulcan redspice, half a dozen of Humat pods, and a dash of ice salt. The broth was reduced in an Andorian boiler, then cooked at exactly 500 degrees Kelvin and peppered to taste. The recipe for the dish took years to perfect, and Chief O'Brien wanted a copy. (DS9: "Second Sight")