But hot is a double-edged term. This also includes basic knowledge of coffee preparation. Espresso machines brew with 92-94° C hot water. Provided the brewing group and strainer carrier are properly warmed up, this will also arrive in the cup. If it is also pre-warmed, the espresso is hot.
In the KVA, the ways are longer, the brewing group cold, the cups mostly not pre-warmed, etc.
you hopefully see the difference. Boiler temperature should also be at 88 - 92°C.
Foaming milk: Take a jug in your hand, turn on the steam nozzle until you have a full dry steam, then pull the foam until you have a creamy mass. This is called milk foam, in contrast to what some waste incineration plants produce. You should just be able to touch the jug at approx. 56 - 60° C.
When the milk gets hotter, the protein coagulates, which is then building foam
MfG Paul
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