{ "name": "Mashzo Instrument Index", "title": "Instrument Index", "url": "https://mashzo.com/datasets/instrument-index/", "csv": "https://mashzo.com/datasets/instrument-index.csv", "markdown": "https://mashzo.com/datasets/instrument-index/index.md", "computed_at": "2026-10-18", "license": "https://mashzo.com/terms", "headline": "The median published figure in the Instrument Index is 18.58 GBP across 4 sources' own pages (range 10.59 to 69.96 GBP), read 11 October 2026.", "quotes": [ "The median published figure in the Instrument Index is 18.58 GBP across 4 sources' own pages (range 10.59 to 69.96 GBP), read 11 October 2026.", "4 of the 24 named sources read in full publish a figure; 20 publish none, read 11 October 2026.", "Instrument Index, instrument class Brix or alcohol hydrometer: median 19.21 GBP across 1 source, read 11 October 2026.", "Instrument Index, instrument class digital hydrometer: median 69.96 GBP across 1 source, read 11 October 2026.", "Instrument Index, instrument class optical refractometer: median 17.95 GBP across 1 source, read 11 October 2026.", "Instrument Index, instrument class precision glass hydrometer: median 10.59 GBP across 1 source, read 11 October 2026.", "The median is unchanged since 26 September 2026 (was 18.58 GBP across 4)." ], "citation": "\"Mashzo Instrument Index\", updated 2026-10-18, https://mashzo.com/datasets/instrument-index/.", "changed_since": { "since": "2026-09-26", "previous_median": 18.58, "delta": 0, "direction": "unchanged", "sentence": "The median is unchanged since 26 September 2026 (was 18.58 GBP across 4)." }, "national": { "unit": "GBP", "n": 4, "median": 18.58, "min": 10.59, "max": 69.96, "p25": 12.43, "p75": 57.2725, "mean": 29.4275, "units": { "GBP": 4 }, "published_sources": 4, "named_sources": 24, "read_sources": 24, "not_published": 20, "published_share": 0.167 }, "by_axis": { "instrument class": { "Brix or alcohol hydrometer": { "GBP": { "n": 1, "median": 19.21, "min": 19.21, "max": 19.21, "p25": 19.21, "p75": 19.21, "mean": 19.21 } }, "digital hydrometer": { "GBP": { "n": 1, "median": 69.96, "min": 69.96, "max": 69.96, "p25": 69.96, "p75": 69.96, "mean": 69.96 } }, "optical refractometer": { "GBP": { "n": 1, "median": 17.95, "min": 17.95, "max": 17.95, "p25": 17.95, "p75": 17.95, "mean": 17.95 } }, "precision glass hydrometer": { "GBP": { "n": 1, "median": 10.59, "min": 10.59, "max": 10.59, "p25": 10.59, "p75": 10.59, "mean": 10.59 } } } }, "rows": [ { "source": "Brannan, hydrometer range", "url": "https://www.brannan.co.uk/product-category/instruments/hydrometers/", "figure": "£19.21 ", "value": 19.21, "unit": "GBP", "vat": null, "axis": { "instrument class": "Brix or alcohol hydrometer" }, "retrieved_at": "2026-10-11", "quote": "Price range: £19.21 through £24.72", "source_class": "primary-provider-own-site", "text_sha256": "6e51505c80af1fe50071f648465701d9a965bb1bd068d3fedcaccb8dcf80cced" }, { "source": "The Home Brew Shop, hydrometers and jars range", "url": "https://www.the-home-brew-shop.co.uk/collections/hydrometers-jars-range", "figure": "£69.96", "value": 69.96, "unit": "GBP", "vat": null, "axis": { "instrument class": "digital hydrometer" }, "retrieved_at": "2026-10-11", "quote": "RAPT Red Pill Hydrometer/Thermometer from Kegland £69.96", "source_class": "primary-provider-own-site", "text_sha256": "43b44c6f5e8e0f935a14eeda6886584404e2dd2239ff94912d5e9ebd0d04dd00" }, { "source": "Brew2Bottle, refractometer 0-32% Brix", "url": "https://brew2bottle.co.uk/products/refractometer-0-to-32-brix-scale-wort-sg-1-000-1-120", "figure": "£17.95", "value": 17.95, "unit": "GBP", "vat": null, "axis": { "instrument class": "optical refractometer" }, "retrieved_at": "2026-10-11", "quote": "Regular price £17.95", "source_class": "primary-provider-own-site", "text_sha256": "af46732bdcb5ce5df0f509dc2b59535b92fdaced5aa5d62550d13cae1ee1f44d" }, { "source": "Bigger Jugs, Stevenson-Reeves precision single-scale hydrometer", "url": "https://www.biggerjugs.co.uk/products/hydrometer-stevenson-reeves-precision-single-scale-for-wine-beer", "figure": "£10.59", "value": 10.59, "unit": "GBP", "vat": null, "axis": { "instrument class": "precision glass hydrometer" }, "retrieved_at": "2026-10-11", "quote": "Regular price £10.59", "source_class": "primary-provider-own-site", "text_sha256": "a0272aa8ba1e3c2a0cbc66624e4dc0b9af6edfcd4a39e6782ba2445c1b3ef233" } ], "not_published": [ { "source": "Stevenson-Reeves, hydrometers for home wine and beer making", "url": "https://www.stevenson-reeves.co.uk/hydrometers/HBWB.htm", "retrieved_at": "2026-09-11", "reason": "read in full and no accepted figure on the page" }, { "source": "Stevenson-Reeves, alcohol hydrometers to BS 5470", "url": "https://www.stevenson-reeves.co.uk/reeves/HPKM.htm", "retrieved_at": "2026-10-11", "reason": "read in full and no accepted figure on the page" }, { "source": "Brannan, wine and beer hydrometer", "url": "https://www.brannan.co.uk/product/wine-beer-hydrometer/", "retrieved_at": "2026-10-11", "reason": "read in full and no accepted figure on the page" }, { "source": "Stanhope-Seta, BS 718 series M50SP hydrometer", "url": "https://www.stanhope-seta.co.uk/product/hydrometer-with-c-of-c-81/", "retrieved_at": "2026-09-11", "reason": "read in full and no accepted figure on the page" }, { "source": "The Malt Miller, triple scale hydrometer", "url": "https://www.themaltmiller.co.uk/product/triple-scale-hydrometer/", "retrieved_at": "2026-10-11", "reason": "read in full and no accepted figure on the page" }, { "source": "The Malt Miller, Alla hydrometer", "url": "https://www.themaltmiller.co.uk/product/alla-hydrometer/", "retrieved_at": "2026-10-11", "reason": "read in full and no accepted figure on the page" }, { "source": "The Malt Miller, LED optical refractometer", "url": "https://www.themaltmiller.co.uk/product/led-optical-refractometer/", "retrieved_at": "2026-10-11", "reason": "read in full and no accepted figure on the page" }, { "source": "The Malt Miller, digital refractometer for beer", "url": "https://www.themaltmiller.co.uk/product/digital-refractometer-for-beer-brix-and-sg-readings/", "retrieved_at": "2026-10-11", "reason": "read in full and no accepted figure on the page" }, { "source": "The Malt Miller, test and measurement category", "url": "https://www.themaltmiller.co.uk/product-category/equipment/equipment-test-and-measurement/", "retrieved_at": "2026-10-11", "reason": "every candidate on the page was refused" }, { "source": "The Home Brew Shop, Better Brew wine and beer hydrometer", "url": "https://www.the-home-brew-shop.co.uk/products/better-brew-wine-beer-hydrometer", "retrieved_at": "2026-10-11", "reason": "every candidate on the page was refused" }, { "source": "Get Er Brewed, Stevenson Reeves hydrometer", "url": "https://www.geterbrewed.com/stevenson-reeves-hydrometer/", "retrieved_at": "2026-10-11", "reason": "every candidate on the page was refused" }, { "source": "Get Er Brewed, hydrometers and refractometers", "url": "https://www.geterbrewed.com/equipment/hydrometers-and-refractometers/", "retrieved_at": "2026-10-11", "reason": "read in full and no accepted figure on the page" }, { "source": "Brew2Bottle, hydrometers", "url": "https://brew2bottle.co.uk/collections/hydrometers", "retrieved_at": "2026-09-11", "reason": "read in full and no accepted figure on the page" }, { "source": "Brewbitz, refractometer for wine, beer, cider and mead", "url": "https://www.brewbitz.com/products/refractometer-for-wine-beer-cider-brix-and-sg", "retrieved_at": "2026-10-11", "reason": "every candidate on the page was refused" }, { "source": "Brewbitz, hydrometers", "url": "https://www.brewbitz.com/collections/hydrometers", "retrieved_at": "2026-10-11", "reason": "every candidate on the page was refused" }, { "source": "Love Brewing, refractometer 0-80% ABV", "url": "https://www.lovebrewing.co.uk/refractometer/", "retrieved_at": "2026-10-11", "reason": "read in full and no accepted figure on the page" }, { "source": "Balliihoo, Stevenson Reeves wine and beer hydrometer", "url": "https://www.balliihoo.co.uk/wine-and-beer-hydrometer-stevenson-reeves", "retrieved_at": "2026-10-11", "reason": "read in full and no accepted figure on the page" }, { "source": "Hanna Instruments UK, HI96841 digital refractometer for brewing", "url": "https://www.hannainstruments.co.uk/food-and-drink/2350-hi-96841-digital-refractometer-for-brewing", "retrieved_at": "2026-10-11", "reason": "read in full and no accepted figure on the page" }, { "source": "Tilt, Pro wireless hydrometer and thermometer", "url": "https://tilthydrometer.com/products/tilt-pro-wireless-hydrometer-and-thermometer", "retrieved_at": "2026-10-11", "reason": "read in full and no accepted figure on the page" }, { "source": "Tilt Spirits hydrometer (20-100% ABV)", "url": "https://tilthydrometer.com/products/tilt-spirits-hydrometer-for-measuring-alcohol-percentage-20-100-abv", "retrieved_at": "2026-09-11", "reason": "read in full and no accepted figure on the page" } ], "sources": [ { "url": "https://www.stevenson-reeves.co.uk/hydrometers/HBWB.htm", "label": "Stevenson-Reeves, hydrometers for home wine and beer making", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.stevenson-reeves.co.uk/reeves/HPKM.htm", "label": "Stevenson-Reeves, alcohol hydrometers to BS 5470", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.brannan.co.uk/product/wine-beer-hydrometer/", "label": "Brannan, wine and beer hydrometer", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.brannan.co.uk/product-category/instruments/hydrometers/", "label": "Brannan, hydrometer range", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.stanhope-seta.co.uk/product/hydrometer-with-c-of-c-81/", "label": "Stanhope-Seta, BS 718 series M50SP hydrometer", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.themaltmiller.co.uk/product/triple-scale-hydrometer/", "label": "The Malt Miller, triple scale hydrometer", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.themaltmiller.co.uk/product/alla-hydrometer/", "label": "The Malt Miller, Alla hydrometer", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.themaltmiller.co.uk/product/led-optical-refractometer/", "label": "The Malt Miller, LED optical refractometer", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.themaltmiller.co.uk/product/digital-refractometer-for-beer-brix-and-sg-readings/", "label": "The Malt Miller, digital refractometer for beer", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.themaltmiller.co.uk/product-category/equipment/equipment-test-and-measurement/", "label": "The Malt Miller, test and measurement category", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.the-home-brew-shop.co.uk/products/better-brew-wine-beer-hydrometer", "label": "The Home Brew Shop, Better Brew wine and beer hydrometer", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.the-home-brew-shop.co.uk/collections/hydrometers-jars-range", "label": "The Home Brew Shop, hydrometers and jars range", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.geterbrewed.com/stevenson-reeves-hydrometer/", "label": "Get Er Brewed, Stevenson Reeves hydrometer", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.geterbrewed.com/equipment/hydrometers-and-refractometers/", "label": "Get Er Brewed, hydrometers and refractometers", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://brew2bottle.co.uk/products/refractometer-0-to-32-brix-scale-wort-sg-1-000-1-120", "label": "Brew2Bottle, refractometer 0-32% Brix", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://brew2bottle.co.uk/collections/hydrometers", "label": "Brew2Bottle, hydrometers", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.brewbitz.com/products/refractometer-for-wine-beer-cider-brix-and-sg", "label": "Brewbitz, refractometer for wine, beer, cider and mead", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.brewbitz.com/collections/hydrometers", "label": "Brewbitz, hydrometers", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.lovebrewing.co.uk/refractometer/", "label": "Love Brewing, refractometer 0-80% ABV", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.balliihoo.co.uk/wine-and-beer-hydrometer-stevenson-reeves", "label": "Balliihoo, Stevenson Reeves wine and beer hydrometer", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.biggerjugs.co.uk/products/hydrometer-stevenson-reeves-precision-single-scale-for-wine-beer", "label": "Bigger Jugs, Stevenson-Reeves precision single-scale hydrometer", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.hannainstruments.co.uk/food-and-drink/2350-hi-96841-digital-refractometer-for-brewing", "label": "Hanna Instruments UK, HI96841 digital refractometer for brewing", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://tilthydrometer.com/products/tilt-pro-wireless-hydrometer-and-thermometer", "label": "Tilt, Pro wireless hydrometer and thermometer", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://tilthydrometer.com/products/tilt-spirits-hydrometer-for-measuring-alcohol-percentage-20-100-abv", "label": "Tilt Spirits hydrometer (20-100% ABV)", "license": "the publisher's own terms; quoted for reporting and comment" } ], "methodology": "Every row is a verbatim sentence read from the named source's own page through our fetch service on the date shown, hash-pinned to the stored read (the sha of the page's visible text; the raw page is mirrored to R2). 4 of the 24 named sources that could be read published a usable figure; 20 published none and are recorded as not published, never filled in; 0 could not be read (blocked, dead or unreachable) and count nowhere. The headline figures (median, minimum, maximum, quartiles) are over ONE figure per source in GBP (a source's median where its page yielded several accepted sentences), so N counts sources, never sentences; 29 candidate sentence(s) were refused by a reviewer with the reason recorded. The fuller derivation this dataset is chartered to grow into (not yet what the figures above are; they are each source's own published figure as read): one row per instrument from the maker's or stockist's own page - scale span, graduation, calibration temperature, the standard it is built to, and price - and the derivation nobody publishes: the UK market's spread of price per instrument class (glass triple-scale, precision single-scale, optical refractometer, digital refractometer, wireless in-fermenter), how many instruments in each class state a calibration temperature at all, and what the same instrument costs across every stockist that lists it", "embed": "

18.58 GBP

median published figure, Instrument Index, across 4 sources, read 11 October 2026

Source: Mashzo Instrument Index
" }