A sugar caster is a small container, with a perforated top, larger than a salt shaker but similar in form. The sugar caster was part of a set of vessels, and a rack to hold them used to contain spices and condiments on the dining table. The set would have a salt shaker, a pepper shaker, a vinegar cruet, an oil cruet, a sugar shaker, and a mayonnaise jar with spoon. The word is first attested to in 1676.