Latte art comes out as a shapeless blob
Instead of a pattern, a pale round patch of foam lands on the surface and stays there.
Applies to: Espresso machine, Latte, Flat white, Cappuccino
Why the pattern lands as a blob
CoffeeHQ explanation
A latte art pattern is drawn by foam flowing across the surface of the drink. For that, the foam has to be fluid enough to spread and to be pushed into a shape by the stream behind it. Foam that is too stiff does not flow. It leaves the jug late, all at once, and sits where it lands as a white mound.
Timing produces the same result from good milk. If the low, pattern-making part of the pour starts when the cup is almost full, there is no room left for the white to travel, and it piles up at the point of entry. And milk that stood in the jug for half a minute has separated into liquid at the bottom and stiff foam at the top, so the pour is thin milk followed by a lump.
Causes, most likely first
There are 3 likely causes, listed with the most probable first. Work down the list and change one thing at a time, so that when the problem goes away you know which change fixed it.
Cause 1 of 3 · Commonly the cause
Foam too stiff to flow
- How to check
- Does the milk in the jug hold a peak when you tilt it?
- What to change
- Aerate less and texture longer, until the milk in the jug looks glossy rather than bubbly.
Cause 2 of 3 · Reported, not independently verified
Pouring too slowly at the pattern stage
- What to change
- Once the spout is close to the surface, increase the flow rather than trickling.
Cause 3 of 3 · Commonly the cause
Milk left standing after steaming
- What to change
- Swirl and pour immediately; foam and liquid separate within a minute.
If none of these fixes it
Check the cleaning and descaling guide. Equipment that needs maintenance can cause several of these symptoms at once, and no change of recipe will correct it.
Work through it for your setup
The causes above are general. These go to the part of a diagnostic that takes this symptom one check and one change at a time.
- Milk and coffee do not come together: a cap of foam, or milk then coffeeThe possibilities, the quickest check and one thing to change first
- Stiff, dry foam that sits on top like meringueThe possibilities, the quickest check and one thing to change first
Decide whether it was the milk or the pour
Swirl the jug before pouring and look. If the milk moves as one glossy liquid, the milk is fine and the fault was timing: bring the spout down to the surface earlier, when the cup is about half full, and pour a little faster. If the surface is matt, or a cap of foam rides on top and lags behind the swirl, the milk had too much air or waited too long: add less air next time and pour within a few seconds of finishing.
Easily confused with
- Stiff foam — The cause of most blobs. If the foam would hold a peak on a spoon, no pouring technique will make it draw.
- A faint pattern — The opposite fault. A blob has too much foam arriving too late; a faint pattern has too little foam or too high a pour.
What not to change at the same time
Do not change how much air you add and how you pour in the same drink. Fix the milk first and pour a plain heart; change the pour only once the milk is right.
How to tell it is fixed
White appears as a small disc the moment the spout comes down, grows steadily as you pour, and can be cut through cleanly at the end.
If that changed nothing
Practise the pour with water in the jug and a drop of washing-up liquid, into an empty cup. It costs no milk and isolates the hand movement from the steaming.
Milk frothing troubleshooter — Describe the jug before the pour, not the cup after it. If the first suggestion is about air, the session should be spent on steaming.
Related issues
Learn the technique
Step-by-step guides to the skills this problem comes from.