Mayonnaise of 2 ml samples were poured into the 10-ml beakers,
and then the beaker was put in a water bath of different
temperature: 60, 64, 68, and 70 C. The time at which the oil
separated out from mayonnaise was recorded within the 60-min
observation time. If emulsion did not break at this point, no time
was recorded. Each sample was measured in triplicate.