Guides
How to read price data without being misled by it. Written by the people who built the measurement system, with every statistic queried live from our own dataset.
The espresso machine checklist to run before you pay
Twelve checks, most of them thirty seconds each, that between them prevent almost every avoidable espresso purchase mistake.
Why the same espresso machine costs different amounts at different stores
Identical model, identical specification, meaningfully different price. Six reasons, and what to do about each.
How to split a budget between machine, grinder and everything else
The allocation matters more than the total. Here is where each additional amount actually shows up in the cup.
Commercial machines at home: what nobody mentions until it arrives
Duty cycle, plumbing, power and drainage. Four practical constraints that decide whether a commercial machine is a good idea in a kitchen.
Refurbished, open box, B-stock: what the labels actually mean
Condition labels are not standardised, and the same word means different things at different retailers. Here is how to read them.
Single boiler, heat exchanger or dual boiler: what actually changes
Three boiler layouts, three genuinely different machines. The difference is not quality — it is whether you can brew and steam at the same time.
What actually matters in an espresso grinder
Burr size, stepped versus stepless, and retention. Three specifications that change results, and a long list that does not.
Steaming milk at home: pitcher size, wand angle, and the two-phase rule
Microfoam is not a skill you either have or do not. It is two phases, in order, with a pitcher that is the right size.
Why your shots run too fast, and why grinding finer stops helping
Gushing shots are usually not a grind problem. They are a distribution problem, and the fix is free.
Dose, yield and ratio: the three numbers that make espresso repeatable
Nothing about espresso improves until you can repeat it. Repeatability comes from measuring three things, and only three.
The two parts that wear out on a schedule
A group gasket and a shower screen cost very little and cause a surprising share of the faults people take machines in for.
An espresso machine maintenance schedule you will actually keep
Daily, weekly, quarterly, yearly. Four lists, none of them long, and a machine that outlives its warranty by a decade.
Cleaning a coffee grinder, and when burrs actually need replacing
Stale oil changes how coffee tastes long before burrs go blunt. Most "my grinder is worn out" problems are a cleaning problem.
Water for espresso: the variable that outranks your machine
The same beans, the same grinder and the same machine will make noticeably different coffee on different water. Here is what to change and what to ignore.
Backflushing: what it does, and which machines can do it
Five minutes a week, one cheap basket, and a machine that keeps tasting like it did when it was new.
Descaling an espresso machine: how often, and how to tell
Scale is the single most common cause of a dead home espresso machine. It is also the cheapest thing to prevent.
When seasonal sales are real, and when they are theatre
What actually happens to prices during the big retail events, measured rather than assumed.
Shipping costs and what a price comparison can honestly tell you
Why we say "shipping unknown" instead of guessing, and what that means when you compare.
How to spot a discount that is not really a discount
The mechanics of inflated reference pricing, and the two checks that expose it in seconds.
How to read a price history chart
A price chart answers a different question from a price tag. Here is how to get a straight answer out of one in about ten seconds.