Walk up to most espresso machines and you'll usually have a choice: pull a single shot or a double. It sounds like a small decision, but it genuinely changes how a drink tastes, how strong it feels, and how it works with different cup sizes and milk ratios. There's no universally "correct" answer here — it depends on how you like to drink your coffee. This guide explains the real differences between single and double shots, and how to decide which suits you.
The quick answer
A double shot uses roughly twice the dose and yield of a single shot, producing a stronger, more intense drink, while a single shot is milder and often better suited to black coffee drinkers who find a double too strong, or to smaller cups where a double would feel overwhelming. Neither is more "correct" than the other — it comes down to personal taste, how much milk or water you're adding, and how much caffeine intensity you want.
What Single and Double Shots Actually Are
A single shot typically uses around 7–10g of ground coffee to produce roughly 15–20g of liquid espresso, while a double shot typically uses around 18–20g of ground coffee to produce roughly 36–40g of liquid espresso, following the same broad ratio principles covered in our guide to espresso extraction. A double isn't simply "more coffee squeezed into the same shot" — it's a genuinely different dose brewed through a differently sized basket, which is why most modern machines and baskets are specifically designed around one or the other rather than treating them as interchangeable.
Why Some People Prefer a Single Shot
Black coffee drinkers in particular sometimes find that a double shot, drunk on its own with nothing to dilute or soften it, tastes too intense, too strong or almost overwhelming, especially first thing in the morning or with a smaller cup. A single shot gives a noticeably milder, gentler intensity while still delivering genuine espresso character, which can suit people who enjoy black espresso but find a full double a bit much. It's a completely reasonable preference rather than a compromise — plenty of espresso drinkers simply prefer the more measured intensity of a single.
Why Some People Prefer a Double Shot
A double shot is the standard choice for most milk-based drinks, since the extra volume and strength holds up against steamed milk without tasting thin or washed out. It's also simply more efficient to pull for most home machines and baskets, which are commonly designed around double baskets as standard. For people who enjoy a stronger, bolder coffee experience, or who are making a latte or cappuccino where milk will noticeably dilute the espresso's intensity, a double is usually the better starting point.
Balancing Shot Count with Cup Size
Cup size matters just as much as personal taste when deciding between a single and a double. A double shot in a small espresso cup, drunk neat, delivers a genuinely concentrated, intense hit that some people love and others find too much. That same double shot in a larger cup, topped up with hot water in an Americano-style drink, becomes a much gentler, more approachable coffee, since the extra water dilutes the intensity while keeping the same underlying espresso character. If you're finding double shots too strong in a small cup, diluting rather than switching to a single is one option worth trying before assuming a single shot is your only route to something milder.
Milk Ratio Considerations
For milk-based drinks, shot count interacts directly with how much milk you're adding. A single shot in a small flat white or cortado-style drink, with relatively little milk, can taste well-balanced, since there's less milk to dilute the espresso's flavour. That same single shot in a large latte, with considerably more steamed milk, can taste thin and underwhelming, since the espresso gets diluted across a much larger volume of milk. As a rough guide, the more milk a drink contains, the more a double shot tends to be needed to keep the coffee flavour present rather than lost underneath the milk.
Caffeine Considerations
A double shot naturally contains roughly twice the caffeine of a single shot, since it uses roughly twice the dose of ground coffee. If you're sensitive to caffeine, prefer to spread your intake across the day, or simply want a milder pick-me-up rather than a strong one, a single shot is a straightforward way to moderate your caffeine intake without switching to decaf entirely. This is worth bearing in mind particularly later in the day, or if you're having multiple coffees.
Does Shot Count Affect Grind and Dial-In?
Yes. Single and double baskets are sized differently and generally need their own dial-in, following the same core process covered in our guide to dialling in a grinder. Switching between single and double baskets on the same machine, using the same grind setting for both, is a common reason people find one or the other consistently under- or over-extracted — treat each basket size as needing its own quick check rather than assuming your dial-in transfers directly.
How to Decide Which Is Right for You
If you drink your coffee black and find a double overwhelming, or you're caffeine-sensitive, start with a single and see how it tastes. If you're making milk-based drinks, especially larger ones, a double is usually the safer starting point to avoid a washed-out flavour. And if you enjoy the intensity of a double but find it too strong neat, try diluting it with hot water rather than switching shot count entirely, since this keeps the same underlying espresso character while softening the intensity.
Which Amici Coffee Suits Single vs Double Shots?
Our Amici House Roast, with its smooth, low-acidity, chocolatey character, works well as either a single or a double, since its balanced profile doesn't become overwhelming even at full double-shot intensity. If you're specifically drawn to milder, gentler black coffee, a single shot of this same roast is a genuinely pleasant way to enjoy it without the intensity of a full double.
Keep Fresh Coffee Coming
Whichever shot count you prefer, fresh beans make the biggest difference to how good it tastes. Our coffee subscription lets you choose your beans, your grind and your delivery frequency, so fresh coffee keeps arriving exactly when you need it.
Why Choose Amici Coffee?
Amici Coffee is an independent UK coffee business with six carefully selected single origin coffees, each with clear origin and tasting information rather than vague blend descriptions. Beans are roasted in partnership with a certified B Corp speciality coffee roasting partner that holds the highest B Corp score of any coffee roaster we work with — a genuinely world-leading, global leader in ethical coffee roasting. You can order online for delivery, visit our café in person, or set up a subscription so your coffee never runs out.
Frequently Asked Questions
What's the difference between a single and a double espresso shot?
A double uses roughly twice the dose and yield of a single, typically 18–20g in and 36–40g out compared with 7–10g in and 15–20g out for a single.
Why would someone prefer a single shot over a double?
Some people, particularly black coffee drinkers, find a double shot too intense or strong, especially in a small cup, and prefer the milder intensity of a single.
Is a double shot always better for lattes and cappuccinos?
Generally, yes, since the extra milk in these drinks dilutes the espresso considerably, and a single shot can taste thin or get lost underneath larger volumes of milk.
Does a double shot have twice the caffeine of a single?
Roughly, yes, since it uses roughly double the dose of ground coffee, though exact caffeine content varies somewhat by bean and roast.
Can I make a double shot taste milder without switching to a single?
Yes. Diluting a double shot with hot water, Americano-style, keeps the same espresso character while considerably softening its intensity.
Do single and double shots need different grind settings?
Often, yes, since single and double baskets are sized differently and generally benefit from their own quick dial-in rather than sharing one setting.
The Bottom Line
There's no single correct choice between one shot and two — it comes down to how you like your coffee, how much milk or water you're adding, and how much caffeine intensity you're after. If a double feels too strong, try a single, or dilute a double with water instead. If a single tastes thin in a milky drink, a double is usually the fix.
Explore Amici's range of single origin coffees, or set up a regular delivery so fresh coffee keeps arriving.
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