Ten practical tools for home espresso: calculators, filters and reference tables, designed to be used while you dial in or maintain your machine.
Every tool runs directly in your browser: the values you enter are never sent to a server and nothing is stored. No account, no installation.
The shot
To work out dose, time and yield of your espresso.
Dose/yield ratio
Coffee dose + ratio → grams to extract and target time.
Volume & time (VST)
Target 25–40 ml in 25–30 s → ok/thin/wide check.
Espresso timer
0–60 s timer with 1:10 (bloom) and 1:30 (extraction) milestones.
Dial-in and grinder
To know which direction to adjust the grind.
Grinder dial-in
Perceived strength + dose + time → grind direction.
Water
To set hardness and TDS correctly.
Water hardness (gypsum/calcite)
mg/l → grams of gypsum/calcite per liter for TDS 80–120.
Machine maintenance
Water hardness + usage → backflushing and descaling frequency.
Gear by budget
To navigate machines, grinders and accessories.
Machines by budget
Under 300 / 500 / 800 € + lever, semi-auto or super-auto.
Grinders by budget
Under 100 / 200 / 400 € + flat or cone burrs.
Essential accessories
Tamper, WDT, portafilter and press station by use.
Tasting
Reference sensory notes by origin.
Tasting guide
Sensory notes by origin (fruity, acidic, sweet).
Calculations are based on specialty coffee parameters and best practices: they are a guide, not a standard. The Gear section carries the full data for each machine.