In the crazy fast paced world of food service, which in a lot of cases is 24/7, we need to find the time to break out the elbow grease and do some good old fashioned hard work. We need to keep our work areas and equipment clean and sanitized. Sorry, there is no easy button for elbow grease. Now, let’s discuss stainless steel or consider it stain-“LESS”.
Contrary to popular belief, stainless steel is susceptible to rust and corrosion. Stainless steel(s) are passive metals because they contain other metals; chromium, nickel, and manganese that stabilize the atoms. Four hundred series stainless are called ferritic, contain chromium, and are magnetic. Three hundred series stainless are called austenitic, contain chromium and nickel, are non-magnetic, and generally provide a greater resistance to corrosion than ferritic types.
With 12-30% percent chromium, an invisible passive film covers the steel’s surface acting as a “shield” against corrosion. As long as the film is intact and not broken or contaminated, the metal is passive and STAIN-LESS. If the passive film of stainless steel has been broken, equipment starts to corrode and at its end, it rusts.
Enemies of Stainless Steel
Mechanical abrasion – Items that will scratch a steel surface. Steel pads, wire brushes, and scrapers are prime examples that cause abrasions on the steel.
Water – Water comes out of the faucet in varying degrees of hardness. Depending on where you live, you may have hard or soft water. Hard water may leave spots and rust stainless steel. Other deposits from food preparation and service must be properly removed. Treated water may be your first defense.
Chlorides – Found nearly everywhere like water, food, and table salt, for example. One of the biggest perpetrators can come from household and industrial cleaners.
On every CVap® cabinet there is a cleaning label on the door to remind you to break out the elbow grease on a consistent basis and be sure to drain, clean and refill your evaporator with fresh clean water every day. Your CVap will return the favor by providing many years of dependable service in what Winston is known for, controlling food temperature and texture for extended periods.
A DAILY CLEANING DISCIPLINE AS FOLLOWS IS NECESSARY TO INSURE A LONG LIFE OF THE CVap INTERIOR STAINLESS COMPONENTS.
- Remove inside components to the sink for cleaning and rinsing.
- Remove inside cabinet deposits non-abrasively; wash or sanitize with non-chloride cleaner; then rinse – allowing rinse water to drain to evaporator.
- Drain the evaporator; wash with a non-chloride cleaner; remove all deposits using non abrasives. If there is a white scale on heat transfer surfaces, use Scale Kleen, Lime-A-Way or similar to remove. Rinse thoroughly and refill with fresh potable (non-chloramine) water.