English wine cask units
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Capacities of wine casks were formerly measured and standardised according to a specific system of English units. The various units were historically defined in terms of the wine gallon so varied according to the definition of the gallon until the adoption of the Queen Anne wine gallon in 1707. In the United Kingdom and its colonies the units were redefined with the introduction of the imperial system whilst the Queen Anne wine gallon was adopted as the standard US liquid gallon. The major wine producing countries use barrels extensively and have developed standards at variance with the traditional English volumes (e.g. a hogshead of 300 L or 66 imp gal or 79 US gal, a barrique of 220 L or 48 imp gal or 58 US gal (Bordeaux), 225 L or 49 imp gal or 59 US gal (Australia) of 230 L or 51 imp gal or 61 US gal (Burgundy) and a puncheon of 465 L or 102 imp gal or 123 US gal)[1] are commonly used in the wine and wine cooperage industries.
Contents
Units
- Tun
The tun (Old English: tunne, Latin: tunellus, Middle Latin: tunna) is an English unit of liquid volume (not weight), used for measuring wine, oil or honey. Typically a large vat or vessel, most often holding 252 wine gallons, but occasionally other sizes (e.g. 256, 240 and 208 gallons) were also used.[2]
In one example from 1507, a tun is defined as 240 gallons.
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Translation: "He that is a gauger ought to understand that there is in a tunne 60 sesters, and every sester is 4 gallons, be it wine or oil."
- Pipe or butt
The butt (from the mediæval French and Italian botte) or pipe was half a tun, or 1008 pints. Tradition has it that George, Duke of Clarence, the brother of Edward IV of England, was drowned in a butt of malmsey on 18 February 1478.[5][6] In Edgar Allan Poe's short story "The Cask of Amontillado", the narrator claims he has received "a pipe of what passes for Amontillado". In Edward Bulwer-Lytton's novel "Paul Clifford", Lord Mauleverer states to Lawyer William Brandon "Because he sent me, in the handsomest manner possible, a pipe of that wonderful Madeira, which you know I consider the chief grace of my cellars, and he gave up a canal navigation bill, which would have enriched his whole county, when he knew that it would injure my property."
- Puncheon or tertian
The puncheon was a third of a tun. The term puncheon, shortened to pon in the United States, is thought to derive from the fact that it would have been marked by use of a punch to denote its contents. The unit was also known as a tertian (from the Latin word for "third").[2]
- Hogshead
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Of comparable size to the beer hogshead, the wine hogshead was equal to half a butt or a quarter of a tun.
- Tierce
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Closely related to the modern oil barrel, the tierce was half a puncheon, a third of a butt or a sixth of a tun.
- Barrel
The wine barrel was half a wine hogshead or an eighth of a tun.
- Rundlet
The rundlet was a seventh of a butt or a fourteenth of a tun.
History
Originally, the tun was defined as 256 wine gallons;[nb 1] this is the basis for the name of the quarter of 64 corn gallons. At some time before the 15th century, it was reduced to 252 gallons, so as to be evenly divisible by other small integers, including seven.[nb 2] Note that a 252-gallon tun of wine has an approximate mass of one long ton.
With the adoption of the Queen Anne wine gallon of 231 cubic inches the tun approximated the volume of a cylinder with both diameter and height of 42 inches.[nb 3] These were adopted as the standard US liquid gallon and tun.
When the imperial system was introduced the tun was redefined in the UK and colonies as 210 imperial gallons. The imperial tun remained evenly divisible by small integers.[nb 4] There was also little change in the actual value the tun.[nb 5]
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See also
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Notes
- ↑ 256=28
- ↑ 252 = 22×32×7
- ↑ The volume, V, of this cylinder may be approximated from the height, h, and the radius, r, as follows.
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V = πr2h ≈ 22⁄7×(21 in)2×42 in since π ≈ 22⁄7 = (22×32×7)×(3×7×11) cu in = 252×231 cu in
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- ↑ 210 = 2×3×5×7
- ↑ The imperial tun is only about 0.0792% larger than the US tun assuming current definitions. Note that 5 imp gal ≈ 6 US gal.
- ↑ The conversion to litres is approximate and given as a range to reflect the varying definitions of the gallon and the tun in terms of the gallon.
- ↑ The conversion to litres is exact assuming the current 4.54609-litre definition of the imperial gallon.
- ↑ The conversion to litres is exact assuming the current 25.4-millimetre definition of the international inch.
References
- ↑ http://www.apjohn.com.au/Upload/PrintPages/AP%20John_Technical_Specifications.pdf
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- ↑ Dukes of Great Britain
- ↑ Biography Channel Duke of Clarence
