coffee ring
Cup bottom residue
A coffee ring is the circular stain left when a spilled drop of coffee dries, caused by particles migrating to the edge as liquid evaporates.
The term extends to any ring-shaped residue left by a wet cup or mug on a surface: The table was covered in overlapping coffee rings.
In physics, the "coffee ring effect" describes this pattern of particle deposition.
- stainLasting surface discoloration
- mugHandled cup for beverages
- tableHorizontal furniture surface
- circleCurved closed shape
- residueMatter left behind
mark · espresso · latte · coaster · spill · dried · dried up · brown · wood · kitchen counter · morning · morning brew · lazy Sunday · evaporation · physics · particle physics · pattern · particle
- residueresidue, buildup, film, scum, grime
- beverage stainstea stain, wine stain, juice stain
- discolorationdiscoloration, stain, stains, staining, spots
- stainsblood stain, grass stain, grease stain, ink stain, wine stain