Food Safety Systems, Prerequisite Programs and Validation
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or to each other. Biofilms form at a slow but steady rate and become harder to remove over
time. They are most likely to form on rough, penetrable surfaces but can also form on just about
any surface. Fortunately, the original biofilm attachment is weak and easy to remove through
proper sanitation procedures. Therefore, the film soil must be removed and the most effective
method process includes a potable water rinse, soap/cleaner application, mild mechanical
action to further loosen soil, final potable water rinse and sanitizing.
Chemical contaminants of primary concern are allergen proteins. The "Big 8" allergens that are
recognized as significant concern for food manufacturers include eggs, soy, wheat, milk, fish,
Crustacean, peanuts and tree nuts. Human allergic reactions to foods are the results of
sensitivity to the major protein of the food. For example, the primary protein in egg is albumen.
These proteins are often left behind as residue on production surfaces during processing. It is
important that the sanitation process be rigorous enough to remove the protein from food
contact surfaces.
Other chemicals that can be removed through the sanitation process include hydraulic oil and
lubricants. While plants should use lubricants that are H1 rated (food grade) for incidental
contact, it is still important to remove surplus grease that may make its way onto contact
surfaces from over- lubrication.
Physical contaminants may present a lesser challenge for the sanitation crew but should still be
recognized. In grinding, chopping and mixing operations, there is always the possibility that
metal shavings or fragments may be left on surfaces due to metal- to-metal contact. The
sanitation process may be able to remove these fragments before they enter the product or the
product stream. In addition, particles of meat, dough or starch that may form during
manufacturing may also be removed during the sanitation process, preventing hardened
material that can pose a dental hazard.
The Sanitation program needs to include facility area / room and items that will be cleaned after
production processes:
• Facility areas include: Exterior and grounds, Receiving, Production (raw, spice, ready-to-
eat), storage (raw, work-in-process, finished), employee welfare, break / lunch, offices,
etc.
• Listing of food contact equipment, utensils, and containers; facility equipment, such as,
hand wash sinks, trash and inedible containers, etc.; facility structures including walls,
floors, ceilings, cooling units, piping and drains.
• Chemical (cleaners and sanitizers) utilized and mixing instructions.
• Frequency of cleaning (each production day, weekly, monthly or quarterly).
A Master Sanitation Schedule containi ng the above information is typically used to as a record of
the cleaning activities and is initialed by the sanitation lead employee.