This is the first in an occasional series where we point you to genuinely good coffee writing from outside PURA — with full credit, a link to the original, and our own take on what it means for portable espresso.
Today's pick: Cliff & Pebble, a specialty coffee retailer, and their guide "Best Espresso Machines for Light Roast Coffee". Buried in a buyer's guide is one of the clearest "how to dial in a light roast" checklists we've seen — five points, no fluff. Here's their advice, in brief, plus what we'd add from the portable side.
Their five points (summarised, with credit)
Cliff & Pebble's starting point for customers dialing in light roast:
- Start hot. Push brew temperature toward the top of your machine's usable range — light roasts generally want more heat than the ~200°F that suits a medium roast.
- Grind finer than feels right. Most people stop too coarse from fear of choking the machine. Go finer than instinct says, then back off one step only if flow stalls entirely.
- Use a longer ratio. Where a medium roast might run 1:2, light roasts often want 1:2.5 or even 1:3 — more water, more extraction, less sourness.
- Extend the start of the shot. With flow control, hold flow low for 10–15 seconds; with programmable pre-infusion, push it to 8–10 seconds. Even a manual pre-infusion via the brew switch beats nothing.
- Taste for sour, not bitter. Sour means under-extracted (grind finer, go hotter, run longer). Bitter means over-extracted — much rarer on light roast. If it tastes like nothing at all, you're under-extracting too.
They close with an honest warning: expect to spend most of a bag getting there, because the first shots from a new light roast are usually the worst ones you'll pull from it. That's experience talking. Read their full piece here.
What we'd add: the portable translation
Their advice is written for countertop machines, where you control temperature, ratio, and flow directly. On a portable like the NEO Pro, the levers shift — the principles don't:
- On "extend the start of the shot": this is exactly what our Starting Curve automates — a low-pressure wetting ramp before full extraction, run by Brew OS on every shot. Their 8–10 second programmable pre-infusion is the manual version of what the NEO Pro does by design.
- On "grind finer": fully portable-applicable, and it's the main dial on the NEO Pro since dose (16 g) and water (70 ml) are fixed. Their "finer than feels right" matches our own dial-in guide point for point.
- On "longer ratio": the honest caveat — with a fixed 70 ml tank yielding ~30 ml, you can't stretch ratio the way a countertop machine can. So the other levers (grind, prep, rest) have to do more work. That's not a flaw in their advice; it's the portable constraint, stated plainly.
- On "taste for sour": identical diagnosis. Sour is under-extraction until proven otherwise — see our diagnosis table.
The through-line: good dial-in advice is universal because extraction physics doesn't change when the machine gets smaller. What changes is which levers you have — and knowing that is the whole game.
Source: Cliff & Pebble, "Best Espresso Machines for Light Roast Coffee," cliffandpebble.com. Excerpts summarised with credit; all opinions above are our own.
Want the portable version of "extend the start of the shot"? Meet the NEO Pro — battery-powered portable espresso with the Starting Curve built into every shot and stable 6–9 bar extraction at the puck.