Cleaning device with slotted foam pad in container

Abstract

A cleaning device includes a container with a threadedly fastened lid and a foam pad housed within the container. The foam pad has a vertically formed cylindrical groove. A cleaning fluid for use with the cleaning device includes one or more of the following ingredients: water, surfactants, a non-water solvent, and gluconate salt. A method of cleaning a beverage container includes pouring the cleaning fluid onto the foam pad; inserting a smudged portion of the beverage container at an angle from about 30° to less than 90° as compared to a floor of the container; and rotating the beverage container against the foam pad.

Dependencies are inferred from the claim text.