A turbo shot inverts the usual espresso recipe: grind coarser than normal, dose higher, and let the shot run fast — often 1:3 in fifteen to twenty seconds.
Why it works
Conventional espresso uses a fine grind and high resistance, which extracts strongly but unevenly: the outside of each particle over-extracts while the inside is barely touched.
A coarser bed at lower resistance extracts more gently and more evenly through the particle. Increasing the dose and the yield compensates for the shorter contact.
The result on a light roast is often sweeter and clearer, with less of the harshness that a very fine grind produces.
Where it came from
Light roasts. Dense, hard beans resist extraction, and the traditional response was to grind ever finer — which increases channelling and bitterness. The turbo approach goes the other way.
What you need
Flow or pressure control helps a great deal, and many people run turbo shots at six bars rather than nine. Without it you can still try a coarser grind and a longer yield on a standard machine.
A good grinder. Coarser espresso grinding exposes inconsistency, so this is not a rescue for a weak grinder.
Starting point
18 g in, 54 g out, in about 20 seconds, on a light roast. Expect to move from there.
Last reviewed 8 August 2026