I didn't shake it the first time I drank it. I just think it tastes good and a little sweet.
I shook it about eight or nine times before the second drink, and then it was really amazing. First of all, the foam is very special, and I don't understand the process. I can only say that the bubble is very special, not what I expected. There is a clear contrast between drinking coffee and not shaking it before, which is more delicate. Milk aroma and coffee aroma are mixed together, but the levels of the two can be distinguished.