Flatware Troubleshooting Guide

 

A: Flatware Problem:  Blue to blue-black discoloration over large surface areas, especially noticeable on spoon bowls.

Cause: Usually a reaction between detergent and hard water.

Cure:  Remove with a boiling perforate (oxidizing agent, e.g. DIP-IT) cleaner or with a mild stainless steel polish.  Type of detergent should be changed.

Comment:  Even though you claim you be using the same brand name detergent, the manufacturer may have changed formulation.

 

B: Flatware Problem:  Dark blue to black stains in spots or very small localized areas.

Cause:  Chemical “burn” resulting from direct contact of detergent or certain foodstuffs, or trapped detergent solution improperly rinsed.

Cure: A good mild stainless steel polish will generally restore the finish.

Comment: Properly pre-mix powder or liquid detergent to recommended concentrations.

 

C:  Flatware Problem: Rough white to gray areas having an etched appearance.

Cause:  Soaking with aluminum or heavily chlorinated compounds such as bleach.

Cure: Damage may not be repairable but a mild stainless steel polish may help.

Comment: Cleaning procedure must be changed immediately.

 

D:  Flatware Problem: Blisters or small rounded lumps usually seen on the spoon bowls.

Cause: Using aluminum containers or other aluminum items during the soaking/cleaning process.

Cure:  None.  The damage is irreparable.

Comment: Avoid use of aluminum containers and do not mix aluminum products with stainless when cleaning.

 

E:  Flatware Problem:  Pitting and rusting, particularly on knife blades.

Cause:  Any of the items listed under “Harmful Practices”.

Cure:  Surface rush can be removed with a mild stainless steel polish.  Pitting is irreparable.

Comment:  IN particularly stubborn (repeated) cases the customer may have to be advised against using a dishwasher for knives.

 

F:  Flatware Problem:  The “black” is coming off on towels or tablecloths.

Cause:  True blackening is extremely rugged and can usually only be removed chemically;  i.e. silver dips or aluminum foil and detergent soak.  Usually, it is impacted buffing compound coming off that, for one reason or another, was not removed in the plant.

Cure:  A thorough washing with a small brush if necessary will remove the residual buffing compound.

Comment:  This residue may be regarded as inert, i.e. non-toxic.

 

G:  Flatware Problem:  Brown stainless on the soldered seam of hollow handle knives.

Cause:  Excessive exposure to highly alkaline cleaners which react with the copper in the solder.

Cure:  If not too severe, the stain can be removed with a good stainless steel polish.

Comment:  May be manufacturing defect.

 

© 2006 Tablewaretips.com


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