Brewing, pouring and settling.
-Basic coffee slightly more transparent
-Cream of 5, see instruction
I usually do the effects myself when they are small.
In the example I give you I do it in the lungo glass.
You can also choose to put it in a small tank and then hang some plastic shapes in it for nice waves.
The benefit is that you immediately have the place where the effect takes place if you use the glass, if you put it bigger in a tank it will be looked where the effect takes place.
The principle remains the same, throw in basic coffee and cream 5.
If you choose for the tank I advise you to do this together with SFX.