Dishwashing detergent effective at low temperature

A detergent composition suitable for machine dishwashing at lowered washing temperature which consists essentially of:

• a chelating agent for sequestering the calcium and magnesium ions expected to be present in the wash water;
• alkaline material providing an alkalinity of at least 12% alkali metal oxide;
• a water-soluble oxidizing bleach in an amount supplying about 0.3 to about 3.0 weight percent of the composition of an oxidizing component selected from the group consisting of chlorine and oxygen;
• and certain combinations of nonionic surfactants:
• A. a low-foaming water-soluble polyol which is polyoxypropylene-terminated block copolymer having a polyoxyethylene core;
• B. an oil-soluble condensate of about 1 to about 5 moles of ethylene oxide with a hydrophobic organic compound containing a single --OH group;
• and
• C. a high-foaming water-soluble condensate of at least about 7 moles of ethylene oxide with a hydrophobic organic compound containing a single --OH group, all three surfactants being present in at least 1% for a total of at least 7%.