Aqueous liquid dishwashing composition comprising an ammonium alkyl ether sulfate and alkylamidopropyl betaine

A method for enhancing foam production of an aqueous liquid dishwashing composition, controlling the viscosity of the composition, or inhibiting or preventing gelling of the composition at a temperature below 6° C., comprising incorporating a combination into the composition;

• wherein the combination includes i) at least one ethoxylated C8-C18 alkyl ether sulfate surfactant having an ethoxylation (EO) of from 0.4 to 0.8 and ii) at least one C8-C18 alkyl amidopropylbetaine surfactant;
• and
• wherein the at least one ethoxylated C8-C18 alkyl ether sulfate surfactant comprises an ammonium salt of a C8-C18 alkyl ether sulfate,
• wherein the total amount of the at least one ethoxylated C8-C18 alkyl ether sulfate surfactant and the at least one C8-C18 alkyl amidopropylbetaine surfactant is from 6 weight % to 30 weight % by total weight of the composition,
• wherein the total amount of surfactants other than the at least one ethoxylated C8-C18 alkyl ether sulfate surfactant and the at least one C8-C18 alkyl amidopropylbetaine surfactant is less than 1 weight % by total weight of the composition,
• wherein the weight ratio of the at least one ethoxylated C8-C18 alkyl ether sulfate surfactant to the at least one C8-C18 alkyl amidopropylbetaine surfactant is from 2.5:1 to 4:1,
• wherein the composition comprises one or more viscosity modifiers in an amount of less than 3 weight % by total weight of the composition, and
• wherein the aqueous liquid dishwashing composition has a viscosity from 500 to 1200 mPas as measured on a Brookfield RVT Viscometer using spindle 21 at 20 RPM at 25° C.