A shot that pulls too fast usually means the puck isn't offering enough resistance - often from grinding too coarse, under-dosing, or channeling. This tends to cause under-extraction, showing up as sourness and a thin body. To avoid this, try...
Adjust Your Grind Setting Finer
Try adjusting your grind setting finer, but not an entire setting finer (i.e., one number to another). A tiny adjustment can typically go a long way.
If The Next Setting on Your Grinder is Too Large a Jump
Some grinders may not allow enough granular adjustment to dial in your shot to the second. If you're experiencing this, try increasing your dose slightly instead (around 0.2 grams).
If Your Grinder Can't Grind Any Finer
Not all grinders can grind fine enough for espresso. If you've already reached the bottom end of your grinder and you're using an 18g dose, try using the double-wall basket instead.
If You're Using Pre-Ground Coffee
Pre-ground coffee usually isn't the right grind size, so it often can't create enough resistance in a standard basket to build stable pressure - leading to fast, thin, and under-extracted shots. A double-wall basket restricts the flow so the machine can still generate the pressure needed when the puck itself can't.
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Articles in this section
- Water Hardness, Testing Your Water, & Descaling
- How to Choose Espresso Beans
- How to Prep Your Puck
- How to Pull a Shot
- How to Steam Milk
- How to Dial in Your Shot
- What to Do if the Shot Was Too Fast
- What to Do if the Shot Was Too Slow
- What to Do if the Shot Tastes Sour
- What to Do if the Shot Tastes Bitter