Patent ID: 8399393

Claim:
A warewashing detergent composition comprising: (a) between about 5% by weight and 75% by weight of an alkalinity source; and (b) between about 0.1% by weight and 2.5% by weight of a glass corrosion inhibitor comprising a soluble lithium salt and at least one of a soluble aluminum salt and a soluble silicate salt, wherein if a soluble aluminum salt is present, the soluble aluminum salt and the soluble lithium salt are present in an amount sufficient to provide a weight ratio of soluble aluminum salt to soluble salt of between about 410:1 and about 1:10, and wherein if a soluble silicate salt is present, the soluble silicate salt and the soluble lithium salt are present in an amount sufficient to provide a weight ratio of soluble silicate salt to soluble lithium salt of between about 40:1 and about 1:40.