Here are several options for the coffee to be infused into the milk.
It takes place in a small tank.
1 and 1A are without movement
2 and 2A is with rotation
3 and 3A is with a milkfoam layer
The shots are close and wide so you can see what is happening
1: Throw from the left no movement
Milk 30/70, strong coffee, 30ml tank
1A: Same as 1 wide
2: Coffee in milk with twist, 30 milk/70 water.
Strong coffee 30ml
2A: Same as 2 wide
3: Coffee with milk foam
Foam CRT milk 30/70, strong coffee 30ml
3A: Same as 3 wide