Two replicate experiments were conducted with three samples
per food-contact surface, substrate, and storage temperature analyzed
at each sampling time (n=6). Microbial counts were transformed to
logarithms before means and standard deviations were computed,
and counts were reported in terms of log CFU/cm2 for cells adhered/
attached to the stainless steel and HDPE coupons, and log CFU/ml or g
for cells suspended in the soiling substrates. Data analysis was