Can a manual milk foam machine make coffee flowers?-how to draw flowers with milk foam in a coffee machine

Can a manual milk foam machine make coffee flowers?-how to draw flowers with milk foam in a coffee machine

Milk is an emulsified colloid that dissolves in water and contains tiny fluid fat globules. in human words, it is a string of indelible small particles of protein, fat and a pile of funny substances that are evenly distributed in the water. Mainly water, protein, fat, sugar (carbohydrates); as well as special vitamins, minerals and salt. In fact, what we most want to know is how these compounds interact in our cups.

Lactose: heating of milk.

On this earth, only mammals have lactose (C12H22O11) in their milk, and one molecule of glucose and one molecule of galactose can be obtained by digesting one molecule of lactose.

The sweetness of lactose is 16% of sucrose. When we use a steam stick to heat normal milk, we can feel obvious sweetness. That's the result of a combination of heating and hydrolysis (decomposing with steam water), so milk heated by steam tastes sweeter than milk heated by stove or microwave.

What should be the best temperature for heating milk? In fact, the answer does not depend on the temperature, but on the lactose content of milk. Milk with high lactose tastes sweeter, while milk with bottom lactose naturally tastes the opposite.

So, why does hot milk taste sweet? Because human tongues are particularly sensitive to warm things. Properly heating lactose will have no effect on milk, but boiling milk over direct heat or high temperature is tantamount to destroying the milk directly.

But it is true that milk is boiled at high temperatures, such as sauces in French food, bread baking, etc., fully heated to help milk blend into sauces or flour and avoid caking. Basically, this kind of food is made of milk instead of water.

The first recommended brand is Nestl é full fat, and the rest are President's Milk, Faxi, Baxi, Morninglight Pure Milk (in green box), Wandashan (original with pure milk), Guangming Youbi, New Green Garden, Weiji and fresh milk full of incense, etc. There are also experts said that what brand is not a big problem, fat content must reach 4% to 4.5% (high-fat milk). These concepts are the concepts in my teaching system, but can not be treated as industry standard concepts, remember! Hot milk: refers to the milk that has not been sent at the bottom of the flower jar after the foam operation; foam refers to the foam floating on the upper part of the hot milk after the foam operation; the foam refers to the final product formed after the hot milk and foam are fully mixed after the foam operation. This is also the first step for us to hit milk foam in most cases: first, do fast and low hit until there is obvious resistance and continuous feeling; then do medium hit, and also have obvious resistance and continuous feeling; finally, do high hitting, until the whole has resistance and continuous feeling. Tip: pay attention to the height of the twitch.

Step 2: repeat the first step. In this way, the process of manual milking is completed. If you want your foam not to be too thick, to have a certain sense of flow, just take the first step. Pulling out the piston vertically after foam is helpful to drive out a lot of coarse bubbles. (since the picture has not been downloaded, we do not know the specific samples of the author's low, medium and high hits.)