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Iridescence/coating or film/etching of glassware
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A water or chemical reaction with some glassware. Usually caused by some
combination of soft or softened water and alkaline washing solutions
reacting with the glassware. Can be accelerated by poor rinsing,
overloading and excessive temperature.
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Irreversible condition.
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The condition may not always be preventable. To minimize the possibilty
of etching, use a minimum of detergent, but not less than 1 tablespoon
(15 ml). Underload dishwasher for thorough rinsing and draining, and dry without
heat.
Use a detergent formulated
for naturally soft water.
Use of a rinse agent may also help
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