Hello Everyone:
It seems someone is traveling around telling folks to wax cheese and place it in food storage. And, giving credit to consumers, I've heard from many that this suggestion just doesn't sound safe.
We'll they are right.
Waxing cheese is a method to minimize mold growth on the surface of cheese. It cannot prevent growth or survival of many pathogenic bacteria. In fact it may promote anaerobic bacteria growth, like botulism.
Before the days of refrigeration, we made cheese that was dryer and fermented to a lower pH (higher acid). These types of cheeses were traditionally stored at room temperature with wax covers. The very low pH and fermentation byproducts could inhibit food borne illness bacteria. A perfect example is parmesan style cheese. Acid, dryness, and fermentation byproducts make this cheese capable of storage at room temperature.
Today, many cheeses are made strictly for storage under refrigeration. These cheeses may not have a low pH and other factors created in their manufacture to prevent pathogen growth, since the manufacturer knows they will be kept refrigerated. If someone waxes this cheese and leaves it in food storage, then there is absolutely no science indicating any level of safety.
Please inform consumers that there is no scientific evidence that waxing cheese is safe. In fact, there is evidence to the opposite - placing cheese meant for refrigeration at room temperature is a SIGNIFICANT risk and hazard for food borne illness.
Regards,
Brian A. Nummer, Ph.D.
Extension Food Safety Specialist
Director, Retail Food Safety Consortium
8700 Old Main Hill
Utah State University
Logan, UT 84322-8700
435-797-2116
No comments:
Post a Comment