A novice course in coffee teaching is it better to foam with steam or from a milk pot?

The basic principle of milk foaming is to use steam to hit the milk, so that the liquid milk into the air, using the surface tension of milk protein to form many small foams, so that the liquid milk volume expansion, into a foam-like milk bubble. In the process of foaming, lactose dissolves in milk because of rising temperature, and uses foaming to seal lactose in milk, while the function of milk fat is to make these small foams form a stable state, so that when these milk bubbles are drunk, the fine foam will burst in the mouth, so that the taste and aromatic substances have a better magnifying effect, so that the milk produces a sweet and thick taste and taste. And in the fusion with coffee, the adhesion between molecules will be relatively strong, so that the full combination of coffee and milk, so that the special properties of coffee and milk are highlighted, and completely integrated together to complement each other.

Finally, we will show you how to make dense and detailed milk bubbles. There are many different ways to make good milk foam tissue, but they all include two stages:

The first stage is to get rid of, that is, to put in steam to make the volume of milk foaming.

The second stage is to soak the foamed milk into the air in a swirling way, and make the larger foam break, decompose into fine foam, and let the milk molecules bond with each other, making the foam tissue more compact.

There are many ways of foaming milk on the market, but it can be roughly divided into two categories: one is the combination of milk and milk foam. The other is to separate the stages of getting rid of and beating off, that is, to send the milk first and then beat the milk foam.

The milk bubble tissue formed by these two ways is different from the taste. In the first way, the milk bubble tissue will be more delicate and soft, but the silk degree of the milk bubble will be thinner, and it is not easy to produce dense and elastic milk bubble tissue, but the pattern of pulling flowers is easier to form. The second way is to beat the milk first and then beat the milk foam tissue with a high degree of silk, which can produce QQ elastic milk bubbles, but it is easier to do so in the fumigation stage, and it will be more difficult to make the pattern, but the coffee will taste more dense.