Spec Series Manual
22
CAUTION:  
Do not use any steel wool, abrasive or chlorine based products to clean stainless steel surfaces.
Stainless Steel Opponents
    There are three basic things which can break down your stainless steel’s passivity layer and allow     
corrosion to rear its ugly head.
1)  Scratches from wire brushes, scrapers, and steel pads are just a few examples of items that can be abrasive to stainless 
steel’s surface.
2)  Deposits left on your stainless steel can leave spots. You may have hard or soft water depending on what part of the 
country you live in. Hard water can leave spots. Hard water that is heated can leave 
deposits if left to sit too long. These deposits can cause the passive layer to break down and rust your stainless steel. 
All deposits left from food prep or service should be removed as soon as possible.
3)   Chlorides are present in table salt, food, and water. Household and industrial cleaners are the worst type of chlorides 
to use.
8 steps that can help prevent rust on stainless steel:
1.  Using the correct cleaning tools
 Use non-abrasive tools when cleaning your stainless steel products. The stainless steel’s passive layer will not be 
harmed by soft cloths and plastic scouring pads. Step 2 tells you how to find the polishing marks.
2.  Cleaning along the polish lines
 Polishing lines or “grain” are visible on some stainless steels. Always scrub parallel to visible lines on some stainless 
steels. Use a plastic scouring pad or soft cloth when you cannot see the grain.
3.  Use alkaline, alkaline chlorinated or non-chloride containing cleaners
 While many traditional cleaners are loaded with chlorides, the industry is providing an ever increasing choice of non-
chloride cleaners. If you are not sure of your cleaner’s chloride content contact your cleaner supplier. If they tell you 
that your present cleaner contains chlorides, ask if they have an alternative. Avoid cleaners containing quaternary salts 
as they can attack stainless steel, causing pitting and rusting.
4.  Water Treatment
 To reduce deposits, soften the hard water when possible. Installation of certain filters can remove corrosive and 
distasteful elements. Salts in a properly maintained water softener can be to your advantage. Contact a treatment 
specialist if you are not sure of the proper water treatment.
5.  Maintaining the cleanliness of your food equipment
 Use cleaners at recommended strength (alkaline, alkaline chlorinated or non-chloride). Avoid build-up of hard stains 
by cleaning frequently. When boiling water with your stainless steel equipment, the single most likely cause of 
damage is  chlorides in the water. Heating any cleaners containing chlorides will have the same damaging effects.
6.  Rinse
 When using chlorinated cleaners you must rinse and wipe dry immediately. It is better to wipe standing cleaning 
agents and water as soon as possible. Allow the stainless steel equipment to air dry. Oxygen helps maintain the 
passivity film on stainless steel.
7.  Hydrochloric acid (muriatic acid) should never be used on stainless steel
8.  Regularly restore/passivate stainless steel
STAINLESS STEEL EQUIPMENT CARE AND CLEANING










