SPSS (Version 18.0) was used to evaluate the effect of
controlling the volumetric displacement in the pressure range
of 10e2 kPa on the water loss rate and cooling time of water
during the vacuum cooling process in a Analysis of variance
(One-Way ANOVA) at p < 0.05 (N ¼ 6; note that test tube
containing thermocouple was excluded from any analysis