Ristretto
The same coffee, stopped early. Thicker, sweeter, less of it, and contrary to what you will read almost everywhere, slightly less caffeine rather than more.
At a glance
- Dose : yield
- 1:1.5
- Active time
- 2 min
- Total time
- 3 min
- Makes
- 1 short double
- Serve
- Immediately
- Kit
- Espresso machine
Ingredients
Note: Some baristas also grind a step finer for a ristretto so the shot still takes 25 seconds. Both approaches are used; stopping early is the simpler one.
Method
-
Dose as normal
Eighteen grams, distributed and tamped exactly as for a double. Nothing changes on this side.
-
Stop the pump at 27 g
Pull as usual and cut it at 27 g, which will be somewhere around 20 to 22 seconds at your normal grind setting.
The stream will still be dark when you stop it, before the pale blonde phase begins.
20 to 22 seconds -
Serve small
A ristretto goes in a small cup, so that 27 g does not look lost. It should be noticeably thicker on the tongue than a full shot.
Why this works
Coffee does not give up everything at once. The compounds in a bean dissolve in a rough order: acids and the lighter aromatics first, then sugars and the body-building compounds, then, towards the end, the bitter and astringent ones. A shot cut at 27 g has taken the first two groups and left most of the third behind.
That is why a ristretto reads as sweeter and rounder than a full shot of the same coffee. It is not more extracted, it is less extracted, and the part it skipped is the part that tastes harsh.
The caffeine claim is the thing worth correcting. Ristretto is routinely described as the more caffeinated shot because it is more concentrated, and the concentration is real: less water holding a similar amount of dissolved material. But caffeine is highly water soluble and comes out early and fast, so by 27 g you have extracted most but not all of what the 18 g of coffee holds. Per millilitre it is higher. Per shot it is slightly lower than a full double, not higher.
The short shot also behaves differently in milk. Less water and more concentrated sugars mean the coffee holds its own against 150 ml of milk without tasting watery, which is why a traditional flat white is often built on a double ristretto.
Variations
- Single ristretto: 9 g in, 14 g out.
- Flat white base: a double ristretto under steamed milk.
- Finer grind version: grind a step finer and pull 27 g over a full 25 to 30 seconds for a heavier shot.
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Questions
Does a ristretto have more caffeine than an espresso?
No, slightly less per shot, although more per millilitre. Caffeine dissolves early and quickly, so a shot cut at 27 g has most of what the dose holds but not quite all of it. The idea that it has more comes from confusing concentration with total amount.
Ristretto vs espresso: what actually changes?
Only the yield. Same coffee, same dose, same grind, stopped at 27 g instead of 36 g. The result is thicker, sweeter and less bitter, because the bitter compounds come out last and you stopped before them.
Should I grind finer for a ristretto?
Either approach works. Stopping a normal shot early is simpler and gives a brighter cup. Grinding finer so 27 g still takes 25 seconds gives a heavier, more syrupy one. Try both with the same coffee.
Is a ristretto the same as a short black?
No. A short black is Australian and New Zealand usage for an ordinary single or double espresso. A ristretto is specifically a shortened yield.