Class 2 sound level meter and acoustic calibrator
A-weighted maximum and equivalent sound at a fixed distance
Current calibration evidence and repeatable placement jigIndependent testing · operational queue
No score until the evidence exists.
Four category-representative pilot machines are declared before acquisition. Retailer commission, clicks and manufacturer access do not affect their order.
Measurement-kit gate
Select capability before brands.
Equipment is not marked ready until each device passes its stated acceptance check. This prevents a convenient gadget from silently becoming the methodology.
Plug-in watt-hour meter
Warm-up, drink-cycle, idle and maintenance energy
At least 0.1Wh display resolution and a documented reference checkTraceable fast-response temperature probe
Water, beverage and milk temperature
Declared accuracy of ±0.5°C or better across the test rangeCalibrated beverage scale
Dry dose, beverage output and batch yield
0.1g resolution with a documented check-weight resultWater mineral-content meter
Record test-water TDS for session reproducibility
Two-point reference check and recorded water temperatureFirst four pilots
One machine from each test category.
Order is a protocol-learning sequence, not a product ranking.
01espresso
Sage · BES450 / SES450
Bambino
A compact, high-intent separate-grinder espresso route with strong specification, maintenance, parts and current-price coverage.
Acquire through an ordinary UK retail route; no affiliate status is considered.✓ Exact machine recordBES450 / SES450
✓ Official manual2 linked
✓ Ownership routineNormalized
✓ UK acquisition routeJohn Lewis · £329
○ Retail unitnot acquired
○ Measurement kitSelection and calibration pending
02bean-to-cup
Philips · EP3347/90
Series 3300 LatteGo
Represents one-touch milk machines and exposes grinder, drink, milk and prompted-cleaning measurements in one pilot.
A retail purchase or fully disclosed temporary loan is acceptable; the supplier cannot preview conclusions.✓ Exact machine recordEP3347/90
✓ Official manual1 linked
✓ Ownership routineNormalized
✓ UK acquisition routePhilips UK · £349.99
○ Retail unitnot acquired
○ Measurement kitSelection and calibration pending
03pod
Nespresso · ENV90.B · UK retail variant
Vertuo Pop
A compact, widely understood pod route suited to repeatability, ready-time, temperature and capsule-cost validation.
Use normal retail capsules from a recorded lot; no manufacturer-supplied evaluation stock is assumed.✓ Exact machine recordENV90.B · UK retail variant
✓ Official manual1 linked
✓ Ownership routineNormalized
✓ UK acquisition routeCurrys · £59
○ Retail unitnot acquired
○ Measurement kitSelection and calibration pending
04filter
Moccamaster · KBG Select · Type G UK plug
KBG Select
Represents batch brewers and creates a baseline for brew time, holding performance, energy and repair-support evidence.
Acquire a normal Type G UK retail unit and retain its exact model label privately.✓ Exact machine recordKBG Select · Type G UK plug
✓ Official manual1 linked
✓ Ownership routineNormalized
✓ UK acquisition routeCurrys · £290
○ Retail unitnot acquired
○ Measurement kitSelection and calibration pending
A retail unit and measurement kit only allow pilot work to begin. Raw observations, repeated runs, ownership cycles, limitations and CoffeeScore publication gates still have to pass.
Read the raw-data contract →