Mean counts (n ¼ 3) of total aerobic bacteria and lactic acid bacteria (log cfu/pack) and estimated mean numbers (n ¼ 3) of Clostridium spp. (log numbers/pack) in vacuum
packs of beef of normal pH (w5.5), intermediate pH (Int.; 5.7e5.9) or high pH ( 6.0) that was orwas not inoculated with 6 log cells of psychrotolerant clostridia and incubated
at 2 C for 56 days.