Basic knowledge of Coffee A brief discussion on the misunderstanding of foaming

For milk foam, there are several misunderstandings that we need to understand in order to facilitate our better understanding of milk foam.

The first error: use up and down shake pull flower cylinder, remove the surface coarse foam. This is a very good method, but many friends have a strong dependence on this method, their milk foam is not good, do not summarize why not play well, and use this means to make up. In the long run, there will be dependence, here I must say, if only this way to coarse foam, milk foam technology is no way to improve, also can not practice the advanced skills of pulling flowers.

The second mistake: spoon off the surface of the coarse foam. This method is the one I most reject. Although some players in the competition with some methods, but I think this is its foam technology is not up to standard, the surface of the rough foam is too much, shake also can not shake off, can only scoop. If you use similar techniques to treat foam, be sure to strengthen your steam control techniques in the foam.

The third mistake: after the milk foam is played, it is placed next to it for a while. This method is annoying, and it's a form of frothing that hasn't been introduced yet. This will aggravate the stratification of milk foam, hot milk and milk foam fusion will not be completed late, a little careless, it becomes milk is milk, foam is foam. The whole cup of coffee has no balance.

The fourth error: two pull flower vats will fall when in a very high position, the original purpose is to fuse, but to stimulate more rough bubbles.

The fifth mistake: milk foam is not good, blame steam, I think, coffee machine steam pressure (ie boiler pressure) in 1.0BAR is better to master the milk foam pressure, this pressure to play milk foam is very long, it is easy to understand the principle of milk foam, but to do a cup of milk foam takes about 13 seconds, oh, no pressure is fast. If the air pressure is 0.8 or 1.2 BAR, the way and method of frothing will change, but the principle is the same. (This point should be ruled out due to impure steam, resulting in "vomiting" phenomenon, pull flower jar also shook badly, if this phenomenon occurs, please exhaust the steam, and then try to fully heat once.)