A standard flat white uses about 18–20 grams of ground coffee for a double espresso, topped with steamed milk and a thin layer of microfoam.
A flat white is an espresso drink with steamed milk and silky microfoam. Cafes usually build it on a double espresso, so the grams of coffee you use are the grams in that double shot. In most specialty bars, that means a dry dose near 18–20 grams. The rest is milk textured to a fine, glossy foam that blends through the cup.
How Many Grams Of Coffee In A Flat White? Cafe Standards Explained
Across Australia, New Zealand, the UK, and the US, the drink sits in the 5–6 ounce range, with a thin cap of microfoam and a higher coffee-to-milk ratio than a latte. Since most shops pull a double espresso for a flat white, the practical answer is the double-shot dose. For modern specialty recipes, that dose lands near 18–20 grams; some bars run a touch lighter or heavier based on the beans and baskets they use.
Why Dose Matters For A Flat White
Dose sets strength and balance. Too little coffee and the milk swallows the espresso; too much and the cup tastes harsh. A well-dialed double shot in the 1:2 brew ratio window brings enough intensity to push through milk while keeping the texture smooth. That is why most flat whites rely on the same dosing you’d choose for a straight double.
Flat White Coffee Grounds By Dose And Ratio
Recipes vary, but there’s a common pattern: double shot, 1:2 ratio, milk to a small cup. Below is a quick table you can use to plan your dose for the size you pour at home. These are working ranges, not hard rules, and they assume a classic 1:2 espresso ratio.
| Flat White Size | Typical Espresso Setup | Dry Coffee Dose (g) |
|---|---|---|
| 5 oz / 150–160 ml | Double espresso | 18–20 |
| 6 oz / ~180 ml | Double espresso | 18–20 |
| 7–8 oz at some cafes | Double espresso (slightly longer milk) | 18–21 |
| Small flat white “piccolo style” | Single ristretto or tight single | 8–10 |
| “Strong” flat white | Double ristretto | 18–20 |
| Decaf flat white | Double espresso with decaf beans | 18–20 |
| Home baskets (pressurized) | Single espresso | 9–12 |
What Counts As The Coffee “Grams” Here?
When people ask how many grams of coffee in a flat white, they’re asking about the weight of the ground coffee in the portafilter. That is the dry dose. It isn’t the weight of the liquid espresso in the cup. If you follow a 1:2 ratio, an 18 g dose yields roughly 36 g of liquid espresso before milk.
How This Ties To Real Espresso Practice
Modern espresso recipes commonly start near an 18–20 g double and a 1:2 ratio. Many cafes tune within that window for taste, machine, and basket fit. Some coffees like a slightly tighter ratio; others open up with a bit more yield. The dose range stays stable for most bar setups, so the flat white dose stays stable too.
How To Dial In The Right Dose For Your Flat White
Start with your basket’s sweet spot. If it’s a standard 18 g basket, aim for an 18 g dose. If it’s a 20 g basket, try 19–20 g. Keep your ratio near 1:2 and pull the shot in the time range your machine supports. Then texture milk to a thin, glossy microfoam and pour.
Simple Dial-In Steps
- Weigh the basket empty, then dose the coffee to your target grams.
- Distribute and tamp level so water flows evenly.
- Pull to around a 1:2 ratio by weight; stop the shot when it hits your target.
- Taste with milk. If the cup feels flat, raise the dose by 1 g; if it tastes harsh, drop 1 g.
- Keep milk volume modest so the espresso leads. Aim for a thin, paint-like foam that blends in.
When To Use A Ristretto
A flat white often shines with a double ristretto. That means you keep the same dry dose but cut the shot shorter for a denser, syrupy base. It boosts body without piling on bitterness. If your beans are bright or light roasted, ristretto can bring welcome depth under milk.
How Many Grams Of Coffee In A Flat White? Scenarios And Ranges
Here are common scenarios you’ll meet and the grams that tend to work. Use them as guardrails. Taste still decides.
| Scenario | Go-To Dry Dose (g) | Why It Helps |
|---|---|---|
| Standard specialty cafe | 18–20 | Matches modern double baskets and 1:2 ratio |
| Light roast espresso | 18–20 (ristretto) | Shorter yield adds body under milk |
| Dark roast espresso | 17–18 | Lower dose softens bite while keeping strength |
| Home single-boiler machine | 17–19 | Helps flow on small pumps and older groups |
| Pressurized baskets | 9–12 (single) | Basket design limits dose and flow |
| Piccolo-style small cup | 8–10 (single) | Keeps coffee-forward taste in a tiny serve |
| Extra-strong order | 18–20 (double ristretto) | Dense base without extra bitterness |
Milk, Cup Size, And Why The Flat White Stays Coffee-Forward
The drink rides a small cup and thin foam, so the espresso isn’t buried. That’s the heart of the style: more coffee presence than a latte, smoother texture than a cappuccino. Typical cafe cups fall near 150–180 ml. With a double shot, that size keeps the balance tight and the flavor clear. For a concise description of the drink, see the flat white entry.
Milk Texture Targets
Stretch the milk just a little, then roll it to polish. You’re aiming for a glossy surface that blends fully, not a thick cap. When the foam folds into the espresso, you get a unified sip from top to bottom. That texture is what sets a flat white apart.
Evidence From Industry Standards
Baristas often anchor recipes to an 18–20 g double and a 1:2 brew ratio. Trade research echoes this. The Specialty Coffee Association reports an average double that starts at 18–20 g with a 1:2 yield. That backs the ranges used above and explains why most flat whites settle there. Read the SCA’s piece: espresso definitions and trends.
Search Intent Answered With Plain Numbers
Many readers type “how many grams of coffee in a flat white” and want a clean number. For the standard, the answer is 18–20 g of ground coffee in the portafilter. If a cafe lists a piccolo or single-shot version, expect 8–10 g instead. If you order it “strong,” most baristas keep the same dose and pour a double ristretto rather than packing extra grams, which keeps the texture sweet.
Step-By-Step Flat White At Home
Set Up
Warm a 150–180 ml cup. Purge the group. Fill a small milk pitcher with cold milk to the bottom of the spout.
Pull The Espresso
Use an 18 g dose if your basket is sized for it. Level, tamp, and lock in. Start the shot and watch the stream. Stop near a 36 g yield for a classic 1:2 base, or stop sooner for a ristretto if you want extra body. Keep the crema intact; it helps the pour blend smoothly.
Steam And Pour
Stretch the milk by just a hair to build a thin microfoam. Then roll to polish until the surface looks glossy and the pitcher feels warm to the touch. Swirl the espresso to knock down bubbles, then pour in a steady stream. Aim to fill the cup without a thick cap.
Dose Calculator Examples
Example 1: Standard Double
Basket: 18 g. Dose: 18 g. Ratio: 1:2. Yield: 36 g. Cup: 160 ml. Milk: enough to finish the cup with a thin foam. This gives you a classic flat white with clear espresso flavor.
Example 2: Lighter Roast, More Body
Basket: 18–20 g. Dose: 19 g. Ratio: 1:1.7. Yield: ~32 g. Cup: 150 ml. Milk: a touch less than usual. You’ll taste more texture without harshness.
Example 3: Small Cup Or Piccolo
Basket: single. Dose: 9–10 g. Ratio: 1:2. Yield: 18–20 g. Cup: 90–120 ml. Milk: minimal, just to integrate. The sip stays coffee-forward despite the tiny size.
Common Mistakes That Throw Off The Dose
Overfilling The Basket
Jamming 21–22 g into a small basket can choke the shot and push channeling. If you want more punch, use ristretto on the same dose or move to a larger basket designed for higher grams.
Letting Milk Volume Set Strength
Pouring extra milk to fill a big cup doesn’t fix a weak base. The dose and ratio set the core strength; keep milk modest so the espresso leads.
Skipping The Scale
Eyeballing dose and yield makes consistency tough. A small scale under the cup and a quick weigh of the basket save you time and beans and keep your flat white steady from one day to the next. Precisely.
Bottom Line For Home Baristas
Use an 18–20 g dry dose for your flat white. Pull at about 1:2 by weight, then add just enough silky milk to land in a 5–6 ounce cup. If the cup tastes weak, add 1 g or shorten the shot. If it’s bitter, drop 1 g or grind a touch coarser. Keep the foam thin and the pour tight. You’ll hit the style every time.
Sources that inform this dose range include industry research on espresso recipes and widely accepted descriptions of the flat white’s size and milk texture. For deeper reading, see the Specialty Coffee Association’s findings above and the reference overview linked earlier.