Some can take more wear and tear

Which stains are the hardest to remove? You might expect mustard and grape juice in a lineup of worst offenders, but food coloring and permanent marker were actually the toughest products to wash away among the 20 in our stain tests.

Many things stained bamboo—no surprise given its dismal overall score. Almost as many stained limestone and butcher block with an oil-rubbed finish. Here's what left a visible mark on the others.

Tile

Food coloring, crayon, ink, permanent marker, rust

Concrete (with penetrating sealer)

Food coloring, hot oil, permanent marker, shoe polish

Paper composite

Drain cleaner, permanent marker, rust

Marble

Food coloring, shoe polish

Stainless steel

Drain cleaner, tarnish remover

Recycled glass

Food coloring