What Is a Doppio? Double Espresso Explained

• Steadier flow: a shallow single puck channels more easily.
• Milk drinks: a single gets lost in a large volume of milk.
• Equipment: modern baskets are built around about 18g.
• Forgiving: a double is easier to tamp repeatably.

A doppio uses a double basket with roughly twice the grounds, so the puck is deeper and denser. Water has more coffee to pass through and flow is more evenly spread, which usually makes shots more repeatable than a single basket.

This is why most cafes pull doubles as standard. Single baskets are shallow and unforgiving, so small errors in dose or tamp have a larger effect. The doppio is the practical baseline recipe for dialling in, with other drinks built from it.

The numbers are a starting point rather than a rule. Basket size, roast and grinder all move the ideal dose and yield, which is why scales and timing matter. The espresso ratio calculator turns your dose into a target shot weight.

• Dose: 18g, weighed.
• Yield: 36g (1:2). Tighter leans ristretto, longer leans lungo.
• Time: 25–32 seconds.
• Temperature and pressure: about 93°C (199°F) and 9 bar.

For how these interact, see what is espresso extraction.

Full breakdown in coffee drink differences.

Most café milk drinks, from cortados to large lattes, use a doppio as their base.

Most of the drinks in our guide to alternative espresso drinks start from a doppio, and so does a properly made americano.

• Most cafés: "espresso" already means doppio.
• Italian bars: "un caffè" is a single; ask for "un caffè doppio".
• Drink it quickly: crema breaks down within a minute or two.

1. 1

   Weigh 18g. Of freshly ground coffee, fine like table salt.

2. 2

   Level the grounds. So water finds no easy channel.

3. 3

   Tamp straight down. For an even puck; force matters less than level.

4. 4

   Pull to 36g. In 25–32 seconds on a scale.25–32 seconds

5. 5

   Adjust. Sour or thin, grind finer; bitter or dry, grind coarser.

Deeper tuning is in how to dial in espresso. A blade grinder will hold back any machine. The espresso dial-in calculator tells you what to change after each shot.

• Use a scale with a timer under the cup to track both dose and yield.
• Buy a precision basket that matches your target dose; overfilling or underfilling is a common cause of uneven extraction.
• Adopt a simple puck routine: grind into the portafilter, WDT, level tamp, then use a puck screen if your shower screen is worn or messy.
• Consider single dosing your beans with a bellows or hopper-less grinder to reduce stale coffee and clumps.
• Use pre-infusion to even out the puck before full pressure.

Filtered water with moderate mineral content protects the machine and improves taste. If you are unsure where to start, the dial-in guide walks through each variable.

A doppio uses twice the coffee of a single, so any drift in your routine is easier to taste. Most day-to-day changes trace back to a few causes.

• Beans are ageing. As coffee loses gas over the weeks after roasting, shots run faster; grind a little finer to keep the time steady.
• Dose is guessed, not weighed. A gram or two more or less in a double basket changes flow noticeably, so weigh every shot.
• The grinder holds old grounds. Purge a little coffee after changing the setting so the next dose matches it.
• The machine is not fully warm. Give it time to heat and run a blank shot to warm the portafilter.

If shots swing between sour and bitter, follow our dial-in method and change one variable at a time.

Double baskets are more forgiving than single baskets. Their shape allows an even bed of coffee, so doubles are easier to dial in and more consistent from shot to shot. Single baskets are narrower and tapered, which makes them prone to channeling. Most modern drinks, especially milk drinks, are also built around a double shot so the coffee flavour carries through the milk.

If you want a smaller amount of coffee, many cafés will split a double into two cups rather than pull a true single. At home, you can do the same with a split-spout portafilter, which gives you two singles from one double basket. That is often easier than learning to dial in a single basket.

Ordering a doppio in Italy is less common than elsewhere; Italian bars usually serve single shots by default, and you ask for "un doppio" if you want a double. In most other countries, "espresso" on a café menu already means a double shot. If you want a single, ask specifically, and check the cup size to see what you are getting.

A double espresso usually contains somewhere around 100–150 mg of caffeine, but the real figure depends on the beans, the dose and the extraction. Robusta-heavy blends contain much more caffeine than 100% arabica, and a larger dose naturally contains more. Roast level makes less difference than many people think.

For comparison, a typical mug of drip coffee often contains a similar or larger amount of caffeine in total, even though each sip tastes less intense. If you are watching caffeine, track the number of shots across the day rather than the size of each drink. Our caffeine calculator estimates caffeine for common drinks.

If you are sensitive to caffeine, a single shot or a decaf espresso still gives you the ritual and flavour.