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The residue left at the bottom of a coffee pot after it has been left on all day. The coffee evaporates and burns into a crust. This typically happens when there is less than one cup left in the pot.
Dillon, you left the coffee maker on all day again. Go scrub those toasted coffee skins off the bottom.
by jaketlb September 15, 2009

Words related to toasted coffee skins

cafe caffeine cleaning coffee snacks