by Beezer on Fri Dec 10, 2010 3:42 pm
It sounds like you might not be stretching the milk enough, so it's not thick enough to float above the crema. But then you said that when you stretch more, you get a blob on the surface of the espresso, which sounds like the froth isn't incorporated well into the liquid milk.
It's hard to say without seeing the whole process, but I suspect you aren't stretching enough, and you aren't incorporating the froth well either. Are you getting the milk to whirlpool vigorously during the whole process? If not, you need to focus on getting a whirlpool going.
Also, sometimes if you pour the milk from too high up, it can plunge below the surface of the crema and disappear, though it should start to come to the surface as you pour more milk. Getting the height of the pour right takes some practice.
Maybe you can post a video of the frothing and pouring process, so we can see what's going wrong.
Lock and load!