Nescafe D75 - Milk Frother Tests

Version 1.0 en Prodigio service manual
85
FUNCTION TESTS
8.5 Milk frother tests (Prodigio&milk)
Prerequisite
Use newly opened UHT, full fat or semi-skimmed milk at fridge temperature (+ 8 °C till
+ 10 °C) for the following tests only.
8.5.1 Measure hot milk temperature
• Prepare 240 ml hot milk in milk frother (use mixer without spring).
• Measure temperature immediately after preparation in jug.
The milk temperature should be between + 60 °C and + 70 °C (140 °F till 158 °F).
8.5.2 Measure milk froth ratio
• Prepare cold milk froth out of 120 ml milk in milk frother (use whisk with spring).
• Empty content of milk frother into measuring beaker.
• Determine the ratio x [%] of milk froth to liquid milk with following formula:
Approximate values:
direct after preparation..................................................................................x = 250%
60 sec after preparation.................................................................................x = 190%
T he disregard of this
specification can
affect the measuring results
.
Spattered milk
may cause burns.
Only use milk
frother with lid.
RE
L
HO
LD
T
1
T
2
T
1
←
T2
°C
/
°F
M
A
X
M
I
N
1
T2 T1
H2
H1
x
H2 H1–
H1
---------------------
100×=