Pulling a Balanced Espresso Shot
Espresso is a study in precision. By controlling the grind, the dose, and the flow of water, you dictate the character of the final cup.
Consistency is your primary tool.
If the shot pulls too fast, it will taste thin and sour; too slow, and it becomes harsh. Adjust your grind size before changing your dose.
- Espresso machine
- Burr grinder
- Digital scale
- Tamper
- Portafilter
What goes in.
- 18gfreshly roasted coffee beans, ground fine
- 36gfiltered water, heated to 200°F
Chasing the Balance
Focus on the relationship between grind size and time. If the flow is gushing, tighten the grind; if it drips sluggishly, coarsen it.
The method.
Prep the basket
Wipe the portafilter basket dry. Grind 18g of coffee into the basket.
Level and tamp
Distribute the grounds evenly so the surface is flat. Tamp firmly, keeping the tamper level to ensure a uniform puck and prevent channeling.
Flush the group
Run water through the group head for two seconds to stabilize temperature and clear any old grounds.
Extract
Insert the portafilter and start the pump immediately. Place your cup on the scale and stop at 36g of liquid espresso.
Observe the pour
The stream should look like warm honey, transitioning from dark brown to a golden hazelnut color as it finishes.
Other turns to take.
Ristretto
A shorter ratio, usually 1:1, producing a thicker, more intense shot.
Lungo
A longer ratio, usually 1:3, emphasizing clarity and lighter notes.
When it doesn't go to plan.
Always use a scale; visual estimation is never accurate enough for espresso.
The puck should be firm and dry when removed from the portafilter, not muddy.
If you see white streaks or 'blonding' early in the pour, your grind is likely too coarse.
The ones that keep coming up.
Why does my espresso taste sour?
The shot is under-extracted. Use a finer grind or increase your contact time.
What if the shot tastes bitter or burnt?
The shot is over-extracted. Coarsen your grind or shorten the total yield.
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