The hazard Analysis and Critical Control Points concept was studied du
ring the manufacture of ''Iberico'' dry-cured ham using traditional me
thods. From a microbiological point of view the Iberian dry-cured hams
studied had a hygiene status as good as cooked York hams. The water a
ctivity decreased continuously during the process and was found to beg
in to inhibit microorganisms (aerobic mesophiles, psychrophiles, Micro
coccaceae, lactic acid bacteria, Clostridium botulinum, total coliform
s, faecal coliforms, Salmonella, Shigella, Enterococci, Enterobacteria
ceae, Brochothrix thermosphacta) five months before the end of the cur
ing process.