Smeg STU8642 Manual page 23

• When a program with hot prewash is selected (see program table in the
"Description of Controls" manual), extra detergent must be placed in
the cavity (ref. A or B fig. 5-06, depending on models).
• Only use dishwasher-specific detergents. For optimal washing results
it is important to use a good quality detergent.
• The detergent packs must be sealed and stored in a dry place to pre-
vent the formation of lumps which may negatively affect washing re-
sults. Once opened the detergent packs should not be kept for too
long, otherwise the detergent loses its effectiveness.
• Do not use detergents formulated for washing dishes by hand, be-
cause they produce a great deal of foam and may negatively affect the
operation of the dishwasher.
• Add the correct amount of detergent. An insufficient amount of deter-
gent will result in a partial removal of dirt from the dishes, whereas
an excessive amount is wasteful and does not improve the washing
results.
• The market offers liquid and powder detergents with differing chemical
compositions, which may contain phosphates, or be phosphate-free
but contain natural enzymes.
• Detergents containing phosphates are more effective against grease
and starch at temperatures above 60°C (140°F).
• Enzyme detergents, on the other hand, are also effective at lower tem-
peratures (from 40 to 55°C / from 104 to 131°F) and are more easily
biodegradable. With enzyme detergents it is possible to obtain at low
temperatures comparable results to those which can only be achieved
at 65°C (149°F) using traditional detergents. For the safeguarding of
the environment we recommend the use of phosphate- and chlorine-
free detergents.
USER INSTRUCTIONS
A B
Fig. 5-06
EN
23