Pick an 18g espresso basket if your everyday recipe sits around 18g of coffee. Pick one rated for 20g if you want a bigger dose and your portafilter has the depth for it. Going up in size won't make your espresso better on its own. What matters is how much coffee the basket holds with enough headspace left over, and whether that dose suits the drinks you actually make.
Below, we compare 18g and 20g recipes side by side, then walk through two Yozcoffee baskets: an 18g model and an 18–20g model. Keep in mind that a basket marked 18–20g covers a nominal range. It isn't the same spec as every basket sold as a dedicated 20g.
Fit comes before capacity. The basket has to seat firmly, clear the floor of the portafilter and leave usable headspace under the shower screen. Two baskets both labeled "58 mm" are not automatically interchangeable.
Key takeaways
- Pick an 18 g basket if your everyday dose sits around 18 g. Pick an 18–20 g basket only if your portafilter has the depth for it.
- At a 1:2 ratio, 18 g in gives 36 g out and 20 g gives 40 g. Keep the ratio fixed and re-dial the grind before judging taste.
- Measure your current basket's outer rim, inner opening and height. Two baskets labeled 58 mm aren't automatically interchangeable.
- If the puck touches the shower screen, drop the dose by about 0.5 g and recheck before moving to a bigger basket.
18g vs 20g espresso basket at a glance
| Question | 18 g basket | 18–20 g basket |
|---|---|---|
| Best starting point | A repeatable dose close to 18 g | Room to test a slightly wider dose range |
| Main fit concern | Rim, inner diameter and spring retention | All of the above, plus basket depth |
| Recipe change | Usually none if 18 g already tastes right | Expect a new grind setting and yield target |
| Who should skip it | Anyone whose preferred dose leaves a lot of empty space | Anyone who can't confirm portafilter depth or shower-screen clearance |
18g vs 20g: how your espresso recipe changes
At a 1:2 brew ratio, 18g of coffee gives you a 36g target in the cup, and 20g gives you 40g. Treat those as starting recipes, not rules that hold for every bag of beans. Brew ratio simply compares the dry coffee weight to the finished espresso weight; La Marzocco's brew-ratio guide explains it well.
- 18g in → 36g out: a solid baseline for a daily double or a small milk drink.
- 20g in → 40g out: a slightly bigger serving, worth trying when you want more coffee in the cup, such as a larger latte.
Sidenote: Holding the ratio steady gets you more espresso, not necessarily a stronger one. Go up to 20g but still stop the shot at 36g, and your ratio drops to 1:1.8. That's a different recipe, not just a different dose. To compare baskets fairly, start both at the same ratio and dial in the grind for each before you judge the taste.
What the basket rating actually tells you
The rated dose is the amount of ground coffee the basket was designed around. It says nothing about the weight of the metal, the espresso yield, or the exact dose every roast will fit comfortably. Darker roasts tend to be less dense than lighter ones, so the same weight can sit at different heights in the basket. Grind size and distribution shift the final puck level too.
So read 18 g or 18–20 g as a starting range. Dose inside it, prep the puck as usual and look at the space left above. If the extra coffee only fits before you tamp, don't force it.
Basket makers also sort their products by machine and portafilter compatibility. The IMS filter catalog and compatibility tools are a good reminder that diameter, profile and machine fit all belong in the same decision.
Measure three things before buying
1. The current basket, not just the group-head label
Take out your current basket once it's cool and empty. With calipers, measure the outer rim, the inner opening and the height. Note whether it has a retaining ridge and whether the walls run straight or taper. Then compare those numbers with the replacement's listing. If the maker publishes a machine-specific fit list, trust that over a nominal size.
Our 58 mm crystalline titanium 18g basket, for example, lists a 70 mm outer rim, a 60 mm inner opening and a 24.5 mm height. It's ridgeless, so your portafilter spring has to hold it firmly. It won't replace every basket sold as "58 mm."
2. The available depth
A deeper basket can bottom out on the floor of a spouted portafilter even when its rim seats perfectly. The 58 mm tapered 18–20g basket stands 38 mm tall and narrows to a 34 mm perforated base. That 34 mm figure is the base, not the tamper size. Check depth and bottom clearance before you order.
A bottomless holder removes the floor under the basket, but it still doesn't guarantee that the rim or spring will match. If you want an open underside to watch extraction, browse our bottomless portafilters and baskets and confirm your machine model, locking tabs and basket retention first. The 58mm bottomless portafilter guide goes through each check.
3. The top clearance with your normal puck
Dose, distribute and tamp the way you normally do, then check for shower-screen contact using your machine maker's method. A deep screw or dispersion screen eats into the usable space. If the dry puck shows a screen imprint before brewing, the dose or an added accessory needs another look. No single headspace number works for every group and basket.
Using a puck screen? Count its thickness too. Work through the puck screen diameter and headspace checklist instead of assuming a screen fits because its nominal diameter matches.
How to fix a puck that touches the shower screen
- Drop the dose by about 0.5 g, tamp as usual and check the clearance again.
- If you use a puck screen, repeat the clearance check without it to see how much space it takes up.
- Still touching at the dose you want? Move to a basket rated for that dose, but only after confirming your portafilter's depth.
Which Yozcoffee espresso basket should you choose?
| Basket | Listed dose | Profile | Best for / what to check |
|---|---|---|---|
| Crystalline titanium basket | 18 g | Pure titanium, flat base, ridgeless; 24.5 mm tall | A settled 18g routine; check spring retention against the 70 / 60 / 24.5 mm dimensions |
| Tapered basket | 18–20 g | SUS304 steel, tapered to a 34 mm base; 38 mm tall | Working toward 20g, especially in a bottomless holder; check the full 38 mm depth and holder clearance |
Each basket is sold on its own. Portafilter, tamper, puck screen and coffee aren't included unless the product page says so. And no material, hole pattern or wall shape can make up for a poor fit or inconsistent prep.
Already happy at 18g? Hold the crystalline titanium basket's measurements up against your current basket and go from there. Curious about 20g? Look at the tapered basket, but only after you've confirmed the depth. Because its walls taper while the 18g model's run straight, any taste difference will reflect basket shape as well as the extra 2g of coffee.
Pick the basket for the dose you actually brew, then add a scale so the new ratio stays measurable while you dial in.
Best for settled 18g routines
Crystalline Titanium Basket 58mm, 18g
Pure titanium with a flat perforated base and a ridgeless wall. Compare its 70 mm rim, 60 mm opening and 24.5 mm height with your current basket.
View the titanium basket
Best for testing bigger doses
58mm Tapered Filter Basket, SUS304
SUS304 steel tapering to a 34 mm base, at 38 mm tall for more depth. Confirm holder depth and bottom clearance before ordering; 58 mm fit is not universal.
View the tapered basket
Best for dialing in
Mini Coffee Scale with Timer, 87mm
Reads to 0.1 g with a timer and espresso mode in a 92 × 87 × 17 mm body. Measure your drip tray and leave room for the cup.
View the mini scaleHow to dial in after changing baskets
- Keep the coffee the same. Use the same beans and let the machine fully warm up.
- Start near the rated dose. 18 g in the 18 g basket; somewhere between 18 and 20 g in the larger one.
- Weigh both dose and beverage. A scale keeps the ratio honest. The 87mm mini coffee scale with timer reads to 0.1g and measures just 92 × 87 × 17mm, small enough for many drip trays. Measure yours and leave room for the cup.
- Prep the puck the same way every time. If the grounds come out clumpy, break them up with a needle tool from our WDT and distribution tools, working gently so you don't scrape the basket. Then tamp level with a correctly sized tamper.
- Log shot one. Write down dose, beverage weight, time, how the flow looked and how it tasted.
- Change only the grind for shot two. If the new basket runs fast or slow, move one small step and pull again, keeping dose and target yield fixed. Don't be surprised if it takes more than two shots to land it.
A new basket changes puck depth and flow resistance, so your old grinder setting may not carry over. For the separate inner-diameter check, see the espresso tamper sizing guide. If you see uneven flow after the swap, run through the seven channeling checks before touching the dose again.
When not to change baskets
- Your 18 g recipe already tastes balanced and clears the screen comfortably.
- You can't confirm the new basket's rim, height or retention.
- Your portafilter is too shallow for a deeper basket.
- The real issue is a drifting grinder setting or poor distribution. Fix the prep first.
- You're counting on a new material or hole pattern to guarantee better espresso. It won't.
Choose the basket that matches the dose you actually brew and fits the gear you already own. For most home routines built around 18 g, a well-fitted 18 g basket is all you need. Step up to an 18–20 g basket when the wider range is useful to you and you've confirmed the extra depth and headspace.
Still not sure which basket fits? Contact Yozcoffee with your machine model and your current basket's rim, opening and height, and we'll help you check before you order.
Final thoughts
A bigger basket rating buys you room for more coffee and nothing else. The right basket holds the dose you already brew, seats firmly and still leaves clear space under the shower screen.
Before you order anything, prep your normal dose, check shower-screen clearance the way your machine's manual describes, and look for an imprint on the dry puck. Then pull your current basket and write down its rim, opening and height. If the numbers and the clearance both check out, you'll know whether you need a new basket at all.