Miele Dishwasher Cura e manutenzione - Pagina 5

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2.0

Cleaning agents

2.1

Detergent is available in various forms such as powder, detergent tablets

(tabs), gel/liquid or as part of a combination product. As well as detergent,

combination products may also contain rinse aid ("2 in 1 tab"). In addition,

"3 in 1 tabs" also contain a salt substitute. However, their use is only

recommended with a water hardness of up to 21gr/gal. The majority of

detergents available on the market today is provided in concentrated form

and is mildly alkaline. Detergent must perform a number of varied tasks

as follows:

1. Independently emulsify and disperse food residues: During this

process detergent will encounter the most diverse residues from

grease, fat, starch and denaturated protein to tea stains which will also

be in various states, including dried-on and burnt-on, such as:

a. Water-insoluble substances (e.g. oil, grease).

b. Water-soluble substances (e.g. salt, sugar).

c. Water-dispersible substances (e.g. starch, protein).

d. Chemically indecomposable substances (e.g. sand).

e. Chemically decomposable substances (e.g. tannin, lipstick

residue).

2. Remove discoloration.

3. Prevent redepositing of food remains and starch or lime residues.

4. Bind lime and heavy metals.

5. Prevent corrosion.

Chemical composition / Function of various components:

1. Alkalinity carrier (metasilicates):

Dried-on food residues are swelled to ease removal, dishwasher load

is protected against corrosion, alkalinity is provided.

2. Builder (phosphates):

Binding of substances causing water hardness, removal of tea stains,

dispersal of soil and food residues.

3. Bleaching agent (perborate):

Removal of stains (tea, coffee, colored food residues), killing of

Microorganisms.

Technical Information