Which foam is easier to dissipate from whole milk or skim milk? which is better to make coffee?

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High-calcium and skim milk will not foam, please use fresh high-fat milk (note: it is the kind you want to drink on the same day; some milk companies will add milk powder: no foam; because only fresh milk fat can be solidified in highly rotating or oppressed air) such as bright 3.5 extra thick fresh milk is very good. Manually press about 25 times; stand for about 10 seconds; hot milk needs about 50 times to blister, and the electric pole should be hit on the top 1 of the milk surface; the effect will be better while heating (note: not boil the milk, just slowly heat it, while playing. ) heating temperature: 60 ℃ generally manual foaming should pay attention to these three problems, the effect is obvious if you try several times more

First of all, you have to buy a steel cup (above 16oz capacity is recommended, otherwise it is too small and difficult to operate) and a thermometer, for example, mine is CDN IRB220-F.

Secondly, it is wrong. The hotter the milk is, the more difficult it is to blister. Generally speaking, from cold milk to 58C, you can almost insert the nozzle into the inside of the milk for pure heating.

There is a red alert temperature zone on the thermometer, between 66 and 77 degrees C, heating to no more than 77 degrees C, otherwise it will destroy the nutrition of the milk and pull out the steam stick.

At this time, the temperature in the furnace is still boiling, but it is best to extract coffee oil at 93 degrees C, so turn off the switch that heats up to steam, then let go of excess steam and some hot water, so that the temperature falls below 93 degrees Celsius. When the temperature lamp for coffee extraction is off and on again, the handle filled with coffee powder is put in for extraction.

The steam pressure is controlled by the steam pressure valve through the advanced espresso machine, or by the height of the knob and nozzle from the milk level. The closer the distance is, the finer the foam is.

In addition, foam fineness can also be increased by buying nozzle accessories, such as Rancilio's 3 Hole Steam Tip, which is a great three-hole nozzle to upgrade his Silvia.

Steam can also buy an electric bubble stick, such as my aerolatte stick, the disadvantage is that cold milk is easy to beat, but it is easy to heat the foam after beating, and it is difficult to heat the milk before heating it.

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