{"schemaVersion":"1.2.0","protocolVersion":"1.2.0","updatedAt":"2026-07-24","canonicalUrl":"https://espressoreceipt.com/lab","evidenceBoundary":"Manufacturer and retailer facts are not hands-on product results. Only validated hands-on records enter this list. Price observations are first-party market checks, not physical test results.","catalogVersion":"2026-08-29.1","coverage":{"products":45,"machines":26,"grinders":19,"observed":0,"queued":8,"sourceVerifiedOnly":37,"observedPercent":0},"protocolModules":[{"id":"identity","code":"ID","title":"Check the exact product","appliesTo":"all","purpose":"Record the model, public SKU, hardware version, region, voltage, source, and a protected serial code before the result can link to a catalog product.","minimumRepetitions":1,"output":"Product identity and hardware version"},{"id":"counter-envelope","code":"FIT","title":"Measure space needed to use it","appliesTo":"all","purpose":"Measure stored size, working clearance, cable and hose reach, and the space needed to load, fill, and clean the product.","minimumRepetitions":3,"output":"Stored size and space needed to use it"},{"id":"workflow","code":"FLOW","title":"Time the daily steps","appliesTo":"all","purpose":"Time a repeatable start-to-finish task from a cold, reset station. Include every step the product needs, not only one part of the task.","minimumRepetitions":5,"output":"Typical task time and interruptions"},{"id":"brew-repeatability","code":"BREW","title":"See how steady each shot is","appliesTo":"machine","purpose":"Use the same coffee, grinder, basket, dose, drink weight, preparation steps, and measured shot path for each shot. This shows consistency; it is not a universal taste score.","minimumRepetitions":10,"output":"Shot temperature and drink-weight range"},{"id":"steam-repeatability","code":"MILK","title":"See how fast milk heats","appliesTo":"machine","purpose":"Heat the same amount of cold milk to the same stop temperature. Record time, time before steam works again, and the steps needed for each cycle.","minimumRepetitions":5,"output":"Milk heating time, restart time, and daily-step notes"},{"id":"dose-repeatability","code":"DOSE","title":"See how much coffee comes out","appliesTo":"grinder","purpose":"Follow the stated seasoning and purge steps. Measure the coffee in, coffee out, time, and coffee left behind across repeated doses.","minimumRepetitions":10,"output":"Coffee-in, coffee-out, and grind time"},{"id":"grind-control","code":"CTRL","title":"Check grinder adjustment","appliesTo":"grinder","purpose":"Measure how ground coffee and shot flow change at set adjustment points. Keep the coffee, dose, preparation, machine, and target drink weight the same.","minimumRepetitions":10,"output":"Grinder response and useful shot range"},{"id":"acoustic-energy","code":"LOAD","title":"Measure sound and electricity","appliesTo":"all","purpose":"Measure sound at a fixed distance and electricity used during the task. Record the room background sound and test length with every value.","minimumRepetitions":5,"output":"Task sound level and electricity used"},{"id":"maintenance","code":"RESET","title":"Reset the station","appliesTo":"all","purpose":"Reset the station from a used state. Record routine cleaning, access, supplies, time, mess left behind, and any model-specific limit in the manual.","minimumRepetitions":5,"output":"Reset time, supplies, and access notes"}],"queue":[{"productSlug":"breville-bambino","productKind":"machine","cohort":"foundation","question":"How quickly can repeated shots use this compact machine, and how much space does it need to work?"},{"productSlug":"gaggia-classic-pro-e24","productKind":"machine","cohort":"foundation","question":"How steady are shots and two-drink tasks with this single-boiler machine?"},{"productSlug":"profitec-go","productKind":"machine","cohort":"foundation","question":"How do warm-up, temperature recovery, steam switching, and reset time change across home sessions?"},{"productSlug":"breville-barista-pro","productKind":"machine","cohort":"foundation","question":"How much time does the all-in-one setup save, and where does grinder adjustment affect 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