Predictive equations to compute the chilling time, mass loss at the en
d of chilling, temperature history at the geometric center of round an
d mass loss history during beef carcass chilling were developed using
validated computer models and response surface analysis. Central compo
site rotatable design was used to obtain quadratic response surfaces f
or various chilling parameters. Temperatures at the geometric center o
f round muscle were predicted within 95% confidence interval. Mass los
s histories were also predicted within 95% confidence interval after 5
h postmortem. Temperature predictions were within +/-2C and mass loss
predictions were within +/-1.0%.