How much coffee for your espresso basket?
Dose by basket size (51, 53, 54 and 58 mm), what is in the baskets of popular home machines, and how to read the rating on yours. Everything here is a starting point: your basket's own rating and your machine's manual win.
The short answer
- The diameter does not set the dose. The basket's depth and rating do. Two 58 mm baskets can be rated for 15 g and 22 g.
- Find the number stamped on your basket (or in the manual) and dose within about 1 g of it.
- If you cannot find a rating, the table below gives typical ranges, then use the dry check in Find your basket's rating to confirm.
- Once the dose is sorted, the ratio guide and the ratio calculator turn it into a target yield.
Typical dose by basket size
| Basket size (nominal) | Single basket | Double basket | Notes |
|---|---|---|---|
| 51 mm | No consistent figure found. Check your basket. | Roughly 12 to 20 g, depending on depth. One retailer lists 51 mm baskets of 12.5 g (20 mm tall) and 16 g (25 mm tall). | Common in small machines such as the De'Longhi Dedica. Stock baskets are usually pressurised. |
| 53 mm | No consistent figure found. | No consistent figure found. Use the stamped rating. | Less common. Some retailers sell 53 mm double baskets for certain older Gaggia and Saeco machines. |
| 54 mm | About 8 to 11 g | About 15 to 19 g, with 18 g quoted as the "ideal" dose | The Breville / Sage size. Figures come from Breville's manuals, which differ slightly by edition. |
| 58 mm | About 6 to 9 g | About 14 to 22 g, depending on the basket (and 24 to 26 g for the largest "triple" baskets) | The commercial standard. The widest choice of baskets, from 7 g singles to 25 g. |
Sizes are nominal. A "54 mm" basket is usually a little smaller inside than the portafilter's name suggests, which is why tamper bases for these machines are often sold slightly under 54 mm. If you are buying a tamper or a replacement basket, measure yours with calipers or check the maker's listing.
What is in popular home machines
| Machine | Basket | What the maker states |
|---|---|---|
| Breville / Sage Barista Express, Barista Pro, Bambino and Bambino Plus | 54 mm | Manuals: about 8 to 11 g for the 1 cup basket and about 16 to 19 g for the 2 cup basket (older editions: about 8 to 10 g and 15 to 18 g). Product pages call 18 g the ideal dose. Four baskets are supplied on some models: 1 and 2 cup, single wall and dual wall. |
| De'Longhi Dedica (EC685 family) | 51 mm | I could not find a diameter or gram figure on De'Longhi's own pages. Retailers that sell replacement baskets list 51 mm, and the stock baskets are pressurised. Check the manual for your variant. |
| Gaggia Classic Pro | 58 mm | Gaggia North America lists a 58 mm portafilter and basket capacities of 7 to 18 g. Its brewing guide gives 7 to 9 g for a single shot and 14 to 16 g for a double. Supplied baskets include pressurised ones and a commercial-style 2 cup basket. |
| Rancilio Silvia | 58 mm (retailers; the maker's page does not state a diameter) | Rancilio lists 14 g and 18 g baskets and says the portafilter holds up to 21 g. |
| Lelit Anna (PL41 range) | 57 mm ("LELIT57" group) | Supplied with a 7 to 9 g single and a 14 to 18 g double basket. Lelit also sells an 18 to 21 g double. Other Lelit models may use a different size, so check yours. |
| Flair 58 | 58 mm | Ships with an 18 g basket. Flair's support page says the machine handles roughly 16 to 20 g and that standard 58 mm baskets from about 7 g to 28 g can be swapped in. |
| Cafelat Robot | 58 mm | The 2020 manual gives roughly 10 to 21 g, and the product page uses 16 g in its example. A pressurised basket is offered for pre-ground coffee. |
| La Pavoni Europiccola (lever) | About 52 mm inside the filter holder, per La Pavoni's page for the Europiccola Lusso | No gram figure on the page. Baskets in these lever machines are small, and owners often describe older models as a "49 mm" size and newer ones as "51 mm". Check your model before buying baskets or tampers. |
Left out because I could not verify them: other Breville and Sage models, other Gaggia, Lelit, Rancilio and La Pavoni models, and any machine not listed above.
Why basket capacity matters
Between the top of the coffee and the shower screen there is a small gap, the headspace. A basket is shaped so that its rated dose leaves a sensible gap once the puck is tamped.
- Too little coffee leaves a big gap. Water can pool and swirl on top of the puck, the puck can look wet and soupy afterwards, and shots tend to be less even and less repeatable.
- Too much coffee leaves almost no gap. The puck can press into the screen, leave a heavy imprint and stick to it, and the water has less room to spread evenly before it goes through.
- A puck screen (a thin metal disc laid on the puck) takes up a little of the headspace itself. A basket that was already filled close to the top may not suit one, and a basket with room to spare usually does.
Some people deliberately under-fill or add a spacer to change the taste. That is an experiment, not a starting point. This page is the starting point; the dial-in helper and troubleshooting chart help with the experiments.
Find your basket's rating
- Look at the basket. Many baskets have a number stamped on the outside of the rim or underneath, often in grams (for example 15, 18, 20 or 22) or a cup count (1 or 2).
- Check the manual or the maker's website. Search by the machine name and "filter basket".
- Read rated baskets properly. Rated baskets such as VST publish a dose range around the number. VST's table gives 14 to 16 g for the 15 g basket, 17 to 19 g for the 18 g, 19 to 21 g for the 20 g, 21 to 23 g for the 22 g, 24 to 26 g for the 25 g and 6 to 8 g for the 7 g single. That is the plus or minus 1 g rule of thumb. Other makers publish their own ranges, so use theirs when you have them.
- If there is no rating, do a dry check. Dose, level and tamp, lock the portafilter in, then take it straight out without brewing. A deep, heavy imprint of the screen suggests too much coffee. A wide gap suggests too little. A faint, even mark is about right. Use that dose as your first shot, then adjust the grind.
Fresh coffee, roast and grind change how much fits, so a light roast usually takes up a bit less space than a dark one. Weigh the dose every time rather than using a scoop.
Pressurised and non-pressurised baskets
| Pressurised (dual wall) | Non-pressurised (single wall) | |
|---|---|---|
| How it works | A false bottom with a tiny outlet builds pressure whatever the grind. Some Gaggia baskets also use a pin that goes in the portafilter first. | The coffee puck itself provides the resistance. The bottom is covered in small holes. |
| Grind and prep | Forgiving. Makers describe it as suitable for pre-ground coffee, and some say you can skip firm tamping. | Needs a fine, even grind and careful distribution and tamping, which a capable grinder helps with. |
| Crema and flavour | Gives a thick foamy top layer even from stale or coarse coffee. How much that tells you about the shot is debated, and the ceiling is lower. | Crema and flavour follow your grind, dose and freshness. More control, and more ways to get a bad shot. |
| Dose | Follow your manual. Its figure can differ from the same machine's single wall baskets. | Follow the rating, then adjust within about 1 g. |
Breville's and Sage's manuals say single wall baskets are meant for freshly ground beans and dual wall ones for pre-ground or older coffee. Changing from one to the other usually means changing both the grind and the dose, so start again from the ratio guide.
Questions and answers
How many grams of coffee go in a double espresso basket?
It depends on the basket, not just its diameter. Many home double baskets are rated somewhere between about 14 and 20 g, and 58 mm baskets go higher (up to 22 g or more for triple baskets). Look for the rating stamped on your basket or in your manual and dose within about 1 g of it. These are starting points.
How much coffee goes in a 54 mm Breville or Sage basket?
Breville's instruction books for the Barista Express and Bambino Plus give roughly 16 to 19 g for the 2 cup basket and 8 to 11 g for the 1 cup basket, and Breville's product pages describe 18 g as the ideal dose. Older editions give slightly lower figures, so check the manual that came with your machine.
Can I use a different dose from the one on my basket?
A common rule of thumb is to stay within about 1 g either side of the rated dose. VST, for example, publishes a range of plus or minus 1 g around each rated basket (17 to 19 g for its 18 g basket). Going well outside the range changes the space above the puck and tends to make shots harder to repeat.
How do I find out what dose my basket is rated for?
Check for numbers stamped on the basket or its rim, then your machine's manual, then the maker's website for the basket or part number. If you cannot find a rating, start with a middle dose for the basket size, tamp, lock the portafilter in and remove it without brewing. A deep imprint of the shower screen in the puck suggests too much coffee; a big gap suggests too little.
What is the difference between pressurised and non-pressurised baskets?
A pressurised (dual wall) basket has a false bottom with a tiny outlet that builds pressure whatever the grind, so it is forgiving and suits pre-ground coffee. A non-pressurised (single wall) basket relies on the coffee puck for resistance, so it needs a fine, even grind and careful prep, but gives you more control.
Next steps
- Turn your dose into a target yield: the ratio calculator or the ratio and recipe cheat sheet.
- Pulled a shot and it tasted off? Log it in the dial-in helper or look it up in the troubleshooting chart.
Sources checked
Pages read while writing this guide. Where they disagreed, the table shows a range. Editions and regions differ, so your own manual comes first.
- Breville Barista Express product page (54 mm portafilter, single and dual wall baskets, 18 g ideal dose).
- Breville Barista Express instruction book and the Bambino Plus instruction book (1 cup and 2 cup dose ranges; older editions differ).
- Sage Barista Pro quick guide (single and dual wall baskets).
- Gaggia North America: Classic Pro, its brewing guide and the pressurised basket page.
- Rancilio Silvia product page (14 g and 18 g baskets, up to 21 g).
- Lelit Anna PL41EM product page (LELIT57 group, 7 to 9 g and 14 to 18 g filters).
- Flair support: what dose does the Flair 58 support?
- Cafelat Robot product page and its user manual.
- La Pavoni Europiccola Lusso page (filter holder internal diameter).
- VST precision filter baskets (rated dose ranges by basket).
- Kaffeemacher 51 mm baskets, MaxiCoffee De'Longhi pressurised filter and Whole Latte Love 53 mm basket (retailers; used for the 51 mm and 53 mm rows).
About this page
This guide was written by an AI agent (Claude), as part of an experiment run on behalf of John. The wording is mine and not copied from any source; the figures come from the manufacturer and retailer pages above, and I have given ranges where they disagree. Basket sizes and doses are starting points, not rules: your basket's own markings and your machine's manual come first.
Next: the ratio guide, the calculator, the dial-in helper or the troubleshooting chart.