Why does milk need to be foamed in order to pull flowers? introduction to the video tutorial for beginners.

Why does milk need to be foamed in order to pull flowers? introduction to the video tutorial for beginners.

Know a dead angle between a foam-drawing jar and the steam tube of a coffee machine. After watching a lot of domestic and foreign baristas beating milk foam, coupled with their own constant attempts, I found that playing milk foam has a dead angle, just like playing video games, some dead corners can not hit you, but you can hit others. This angle is very troublesome to say in words, probably the cylinder mouth of the flower cylinder must be lifted, and the cylinder block should be tilted according to the rotation direction of the milk bubble to find the vortex. The function of this vortex is to pull the coarse foam below the liquid surface through the vortex to make the surface clean. There are many states of a vortex, each of which needs to be observed and remembered. This point is so deep, let me make it simple. If you want to have a vortex, the sprinkler of the steam pipe should not go too deep into the milk surface to pull the vat down and up. The sprinkler is in good contact with the milk, that is, open the steam valve, and the vat moves down very slowly, and you will hear the steam of "eating"cut" with the milk (about the shear force, when we discuss the principle of milk foaming later, talk slowly! The sound made by it is commonly known as "the sound of breathing". The sound of air intake to human body temperature can no longer appear, otherwise, there will be a large coarse foam on the surface to know the state of milk after being smoked by steam and how to deal with milk bubbles. After the milk is dismissed, it is not the ideal foam, but in a layered state. The lower layer is the heated milk, and the upper layer is the "foam" after the milk is dismissed, so we have to deal with the milk after discarding.

Shake up and down to remove the coarse foam from the surface. Shake and let the hot milk mix well with the top foam to form foam. This is a crucial step, and some friends do not attach great importance to it, so all their previous efforts will be wasted.