How to make concentrated milk foam with beans in a flower jar commonly seen in the market?

At present, the common jars in the market can be roughly divided into three types (sharp mouth, round mouth, triangular flat mouth), and the cylinder type of different pattern application is different. About (pointed mouth pull flower jar) is a lot of baristas like, feel sharp mouth, thick wall, and appear professional, buy one after another. There are a lot of "wet" people who fail on various occasions, and they always excuse themselves for "hey, I'm not in good shape today." He he. In fact, the pointed flower jar, because the outlet is deeper to control the flow rate is convenient, swing operation is uniform, so this kind of flower jar to make fine leaves is the most appropriate. Because of the tip of the mouth, if you make a heart-shaped flower, or the current popular tulip pattern, the success rate will become very low, and it is not easy to operate.