Timing Your Shots
Learn when to start timing, what shot times mean, and when the rules don't apply.
Timing Your Shots
Shot timing is one of the most discussed topics in espresso. While it's a useful diagnostic tool, understanding what timing actually tells you—and when to ignore it—will make you a better barista.
The Basics of Shot Timing
When to Start the Timer
There are two common approaches:
Method 1: From pump activation
- Start when you press the brew button
- Includes pre-infusion time
- Most common in home settings
- Target: 25-35 seconds total
Method 2: From first drip
- Start when espresso first appears
- Measures extraction phase only
- More common in commercial settings
- Target: 20-25 seconds
Which is correct? Both work—just be consistent. Most home baristas use pump activation since it's easier to standardize.
The "Golden" Shot Time
The oft-cited target is 25-30 seconds for a standard double shot:
| Dose | Yield | Target Time |
|---|---|---|
| 18g | 36g (1:2) | 25-30 sec |
| 20g | 40g (1:2) | 27-32 sec |
| 18g | 54g (1:3) | 30-35 sec |
But remember: time is an indicator, not a goal.
What Shot Time Really Means
Short Shots (Under 20 Seconds)
What's happening:
- Water is passing through too quickly
- Less contact time = less extraction
- Solubles aren't fully dissolved
Likely taste:
- Sour, acidic (unpleasant)
- Thin, watery body
- Sharp, quick finish
- Lack of sweetness
Common causes:
- Grind too coarse
- Dose too low
- Channeling (water finding shortcuts)
- Stale beans
Long Shots (Over 35 Seconds)
What's happening:
- Water is passing through too slowly
- Extended contact time = over-extraction
- Bitter compounds dissolving
Likely taste:
- Harsh bitterness
- Astringent, dry mouthfeel
- Burnt or ashy notes
- Hollow, empty flavor
Common causes:
- Grind too fine
- Dose too high
- Over-tamping
- Fresh/gassy beans
The Sweet Spot
A well-timed shot typically shows:
- First drops at 5-8 seconds
- Steady, honey-like flow
- Gradual color change from dark to blonde
- Natural conclusion at target yield
Understanding Flow Rate
Beyond total time, observing flow tells you about extraction quality:
Ideal Flow Progression
Phase 1 (0-8 seconds): Pre-infusion
- Little to no coffee visible
- Puck saturating with water
- Building pressure
Phase 2 (8-20 seconds): Main extraction
- Dark, viscous streams
- "Mouse tails" or thin streams
- Tiger striping in cup
- Steady, even flow
Phase 3 (20-30 seconds): Late extraction
- Flow rate increases
- Color lightens to blonde
- Time to stop (or stop automatically)
Flow Problems
| Observation | Problem | Solution |
|---|---|---|
| Gushing immediately | Channeling or coarse grind | Better prep or finer grind |
| Dripping very slowly | Too fine or high dose | Coarser grind or lower dose |
| Uneven streams | Channeling | Improve distribution |
| Spurting/sneezing | Channeling | WDT, better tamping |
| Starts fast, slows down | Fines migration | Better grind quality |
When Timing Rules Don't Apply
Light Roast Espresso
Light roasts are denser and less soluble:
- May need 30-40 second extractions
- Higher temperatures help
- Extended pre-infusion beneficial
- Focus on taste, not time
Turbo Shots
Intentionally fast shots with coarser grinds:
- 15-20 seconds total
- Higher doses (20-22g)
- Lower yields (1:1.5 ratio)
- Designed for specific flavor profiles
Long Ratios (Lungo Style)
For 1:3 or higher ratios:
- Total time extends to 35-45 seconds
- Later parts of shot are thinner
- Different flavor balance
- Time becomes less meaningful
Pressure Profiling
Machines with variable pressure:
- Pre-infusion extends total time
- Declining pressure changes flow rate
- Standard timing doesn't apply
- Focus on yield and taste
Lever Machines
Spring or manual lever:
- Pressure curve is different
- Flow rate varies throughout
- Total time often longer
- Learn your specific machine
Practical Timing Tips
Use a Scale with Timer
The most valuable investment for espresso:
- Tracks time and weight simultaneously
- Stops when you hit target yield
- Easy to compare shots
- Under $30 for good options
Develop Your Timing Routine
Consistent process:
- Prep portafilter, place on scale
- Tare scale
- Lock in portafilter
- Start timer with pump (or have scale auto-start)
- Watch flow and weight simultaneously
- Stop at target yield
- Note total time
Recording Your Shots
Keep a simple log:
Date: ___________
Coffee: ___________
Dose: ___g → Yield: ___g
Time: ___sec
Taste: ___________
Notes: ___________
Patterns emerge quickly with data.
Time vs. Taste: The Final Word
Time is a diagnostic, not a destination.
Two scenarios:
Scenario A:
- Shot time: 28 seconds (perfect!)
- Taste: Sour, thin, unpleasant
- Action: Adjust despite "good" time
Scenario B:
- Shot time: 35 seconds (too long!)
- Taste: Sweet, balanced, delicious
- Action: Keep it—your coffee just needs more time
The Right Approach
- Use time as a starting point for dialing in
- Adjust grind to hit target range initially
- Taste and evaluate the result
- Fine-tune based on flavor, not clock
- Accept that each coffee is different
Common Timing Misconceptions
"Faster is always under-extracted"
Not necessarily:
- Coarse grind + high temp can extract well quickly
- Some coffees just flow faster
- Turbo shots are intentionally fast
- Taste is the true measure
"Slow shots are always over-extracted"
Also not always true:
- Light roasts may need more time
- Pre-infusion extends time without over-extracting
- Fresh beans flow slower but aren't necessarily over-extracted
- Again, taste tells the truth
"Pre-infusion time shouldn't count"
This is debatable:
- Pre-infusion IS extracting (just slowly)
- Total contact time matters
- Be consistent with YOUR method
- Compare apples to apples
Summary
Shot timing is a valuable tool but not the ultimate measure of quality:
- Target 25-30 seconds as a starting point
- Adjust grind to get shots into range
- Observe flow rate for extraction clues
- Trust your taste over the timer
- Stay consistent with your timing method
- Adapt to the coffee rather than forcing arbitrary times
The best shot is the one that tastes best—regardless of what the timer says.
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