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No-Scale Yield Estimator
Every guide says "stop at 36 grams" — useless if you don't own a scale yet. This converts your target yield into things you can actually see: a fill line on a shot glass, a volume in millilitres, and a spoon count. Close enough to dial in, honest about its limits.
1Set your dose and ratio
Crema is mostly air — it inflates the volume you see without adding weight. Fresh beans = thick crema = higher fill line for the same grams.
2Stop at this fill line
Liquid volume: ~36 ml of actual espresso
What you'll see in the glass (with crema): ~45 ml
In a standard 60 ml / 2 oz shot glass: fill to the 75% line (red dash)
No shot glass? That's about 3 tablespoons of liquid.
Honest error bar: volume guessing lands within roughly ±5g. Good enough to learn, not good enough forever — a $12 scale is still the best first upgrade.
?How to use it at the machine
👀 Watch the top of the crema
Read the fill line at the top surface, crema included — that's the "what you'll see" number above. The liquid-only number is what remains after the crema settles.
🥄 The spoon fallback
One level tablespoon ≈ 15 ml. Pull into any small cup, then spoon-count into your mug once to learn what your target looks like in that cup. After that, eyeball it.
⏱️ Time is your backup check
If the glass fills to the line in under 20 seconds, the shot ran fast no matter what the volume says. Volume + 25–30 seconds together are a decent scale-free verdict.
?No-scale FAQ
Is 1 gram really 1 ml for espresso?
For the liquid itself, close enough — espresso is mostly water. The catch is crema: it's foam, so a fresh shot can look 20–40% bigger than its weight. That's why this tool separates liquid volume from what you'll see.
Why does my shot glass say 60 ml but overflow?
Most "2 oz" glasses are 60 ml to the brim. A 1:3 lungo from an 18g dose is ~54 ml of liquid plus crema — it genuinely doesn't fit. Use a small cup for lungos.
Can I weigh with a kitchen scale instead?
Yes — if it fits under your cup and reads in grams, it's a real scale for this job. Many kitchen scales are just too thick or too slow to update; try it before buying anything.
How far off can this be?
Crema varies by bean, age, and pressure, so ±5g is a fair error bar. That still separates a 30g shot from a 45g shot — which is the mistake beginners actually make.
Should I eventually buy a scale?
Yes — a cheap 0.1g scale is the single highest-value espresso purchase after the machine and grinder. This tool is the bridge until it arrives, not a replacement.