FermenteaWhere food goes to change
Equipment · Tanks and vats
stone Yorkshire square
The Yorkshire square is a slate fermentation vessel and linked process system, documented in continued use at Samuel Smith’s Old Brewery in Tadcaster. Its form and operation vary by brewery.
A Yorkshire square is a brewery fermentation vessel associated with a particular way of handling yeast-rich foam during fermentation. It should not be used as a catch-all label for any square tank. The clearest current first-party description inspected here is Samuel Smith’s account of the equipment at its Old Brewery in Tadcaster. The brewery calls those vessels stone Yorkshire squares and says they are built from solid blocks of slate. Its current description applies to that brewery’s plant; it does not establish that every vessel bearing the name is made in the same way.
The name is geographical, but the evidence used for this page does not identify a first inventor, workshop, or date of origin. Tadcaster is a documented place of use, not a proven birthplace. A 2024 Brewery History Society visit report independently records the equipment at Samuel Smith’s and describes a large fermentation room with twelve squares, each reported at 80 barrels, alongside further rooms. Those figures characterize the visited brewery, not a standard size for the type. The report does not define its barrel measure, so the figure is retained as reported rather than converted.
Samuel Smith explains that yeast rises and foams in the upper part of its square during fermentation. Brewers rouse the yeast to bring oxygen to yeast beneath the roof of the vessel. This detail matters: the square is part of a working fermentation arrangement, and the yeast strain and the way it is handled belong to the account of how that brewery uses the vessel. Samuel Smith links the system to a full-bodied, rich, malty beer, but this is the brewery’s description of its own ales and stouts, not a guarantee of taste for all beers fermented in square vessels.
The Brewery History Society’s 2024 visitors saw rousing underway at Samuel Smith’s: the report says some squares were roused for five minutes every two hours and fermentation took four days. The report also describes the specific structure they saw: a lower chamber for wort with cooling coils and a further area above its roof where yeast collects. These are valuable observations of the Tadcaster installation. They should not be turned into universal timings or a fixed blueprint for every Yorkshire square.
The official photograph and text from Samuel Smith show broad, open, rectangular fermentation squares with a pale foam head and dark vessel partitions. The brewery specifies slate blocks. The visitor report adds that lids above the squares could be moved between vessels to seal them for clean-in-place cleaning; before that arrangement, a brewer recalled entering each square to clean its chambers manually. This is evidence of a particular brewery’s current access and cleaning setup, not a recommendation to enter a vessel or a safe-work procedure.
The sources do not give a maker, dimensions, construction date, precise slate origin, or a general maintenance schedule. They also do not show that all squares have the same openings, lids, cooling arrangements, or capacity. A brewery considering the name should therefore consult evidence for its own system rather than copy Samuel Smith’s details as a standard.
The inspected sources do not establish when the Yorkshire square was invented or when the name was first used. Samuel Smith’s current brewery page describes its own stone squares and says its yeast strain has been used since the 1800s; that dates the brewery’s strain claim, not the vessel or the system. A Brewery History Society visit report records the squares in operation at Tadcaster in June 2024. Its report is a dated observation of one brewery, not a universal history of the equipment.
A square is a vessel within a fermentation system, not a complete recipe or a guarantee of a particular flavour by itself; Samuel Smith attributes its result to the system of fermentation and its established yeast strain.
Source →The sources do not establish one standard geometry, capacity, or construction material for every brewery’s Yorkshire square. The 80-barrel capacity and slate construction reported here are specific to the cited Samuel Smith installation.
Source →This records Samuel Smith’s documented use at its Tadcaster brewery; it does not claim Tadcaster as the system’s place of invention.
Jars, barrels, skins, leaves, pits and whole rooms decide much of what happens to fermented and cured food. This is how a container works on its contents, and how people in different places chose theirs.
A 150-litre Wi-Fi electric smoking cabinet with a brushed stainless-steel exterior, automatic wood-chip smoke generator and 150°C maximum. Exact model BS150IWUK.
A Burton Union is a connected set of horizontal wooden beer casks, swan-neck pipes and shared troughs. Fermentation lifts yeast-rich foam into the trough; beer drains back to the casks, leaving yeast behind.
A cheese press applies weight or mechanical force to curds in a draining vat or mould. Tiree’s wooden fiodhan, stone weights, screw presses and a documented New Zealand lever press show distinct forms, not one standard design.
A countertop electric cooker combines pressure cooking with model-specific functions such as sautéing, slow cooking, rice cooking and low-temperature programs. Settings do not transfer to pressure canning.
A food-rated pressure canister with a dispensing head and gas-cartridge holder. Cream whippers aerate or dispense foods and, with a compatible rapid-infusion attachment, can speed botanical flavour extraction into liquid.
Three dated jam labels at Glasgow’s Tenement House record household preserves: Victoria plum (1947), strawberry (1961), and rhubarb and ginger (1963). They document storage and domestic history, not a recoverable recipe.
A modern, portable stovetop pan with a stainless-steel cooking surface for sauces and other small simmering jobs. Size, cladding, lid, compatibility and care vary by model.
Open, heated pans cooked fruit into preserves before transfer to jars. Historical records document copper and enamelled cast-iron forms, while museum objects show variation in material and shape.
Soft, spreadable Calabrian pork sausage made with a great deal of red chilli and fatty pork, stuffed into natural casings, sometimes smoked and matured while staying soft.
A way to add independent temperature logging to an existing food dehydrator without changing its built-in controls or protections. It is a monitoring method, not a rewiring plan.
Pleurotus cystidiosus is the abalone mushroom, a cultivated oyster-type fungus with dark brown caps that grows more slowly and is more demanding than other Pleurotus species.
A dark, balanced vinegar from Emilia-Romagna made by combining cooked or concentrated grape must with wine vinegar, then acetifying and refining it in wood under a protected specification.
A living dairy inoculum that starts controlled cream fermentation, developing acidity and aroma before sour cream or cultured butter is finished.
A small electric incubator holds jars at a selected temperature for yogurt and other documented warm food preparations. Controls, capacity and vessel arrangement vary by model.
Adygean salt is a seasoned table salt associated with Adygea and the wider North Caucasian culinary tradition. Salt is blended with garlic and a variable selection of herbs and spices; the exact mix depends on the named style and maker.
The African Caesar-group mushroom, Amanita masasiensis, is a wild ectomycorrhizal species of central and southern African woodlands, eaten locally. The genus contains deadly poisonous species, so identification needs care.
No community contributions have been published for this entry yet.
Sign in to contribute. Published comments and photos are free to read.
Samuel Smith’s Old BreweryForm · Material · Process · Documented use
The Brewery: Stone Yorkshire SquaresThe brewery describes its stone squares as made from solid blocks of slate.
The brewery describes yeast foaming in the upper part, rousing for oxygen to yeast beneath the roof, and the result it attributes to its own fermentation system.
The brewery says its yeast strain has been used since the 1800s; this is not used to date the vessel.
Cited in: A name for a particular brewery system; Foam, yeast, and rousing; Material and maintenance in one documented brewery
Brewery History SocietyForm · Capacity · Process · Maintenance · Documented use
Sam Smith BHS Visit Report 2024The report documents a 26 June 2024 visit to Samuel Smith’s Old Brewery in Tadcaster.
At that brewery, the report describes twelve 80-barrel squares in one fermentation room, four-day fermentation, and rousing five minutes every two hours; these are local observations.
The report describes a lower wort chamber with cooling coils, an upper yeast-collection area, and a movable lid used to seal vessels for clean-in-place cleaning.
Cited in: A name for a particular brewery system; Foam, yeast, and rousing; Material and maintenance in one documented brewery