Traditionally, a cooper is someone who makes wooden,
staved vessels, held together with wooden or metal hoops and possessing flat ends or heads. Examples of a cooper's work include
casks,
barrels,
buckets, tubs,
butter churns, vats,
hogsheads,
firkins,
tierces,
rundlets,
puncheons, pipes,
tuns,
butts,
troughs, pins and breakers. A
hooper was the man who fitted the wooden or metal hoops around the barrels or buckets that the cooper had made, essentially an assistant to the cooper. The
English name Hooper is derived from that profession. Over time, coopers took on the role of the hooper themselves.
Antiquity An
Egyptian wall-painting in the
tomb of
Hesy-Ra, dating to 2600 BC, shows a wooden tub made of staves, bound together with wooden hoops, and used to measure. Another Egyptian tomb painting dating to 1900 BC shows a cooper and tubs made of staves in use at the grape harvest. Palm-wood casks were reported in use in ancient
Babylon. In Europe, buckets and casks dating to 200 BC have been found preserved in the mud of lake villages. A lake village near
Glastonbury dating to the late
Iron Age has yielded one complete tub and a number of wooden staves. The
Roman historian
Pliny the Elder reports that cooperage in Europe originated with the
Gauls in Alpine villages where they stored their beverages in wooden casks bound with hoops. Pliny identified three types of coopers: ordinary coopers, wine coopers and coopers who made large casks. Large casks contained more and longer staves and were correspondingly more difficult to assemble. Roman coopers tended to be independent tradesmen, passing their skills on to their sons. The Greek geographer
Strabo records wooden
pithoi (casks) were lined with pitch to stop leakage and preserve the wine. Barrels were sometimes used for military purposes.
Julius Caesar used
catapults to hurl barrels of burning tar into towns under siege to start fires. Empty casks were used to line the walls of shallow wells from at least Roman times. Such casks were found in 1897 during archaeological excavation of Roman
Silchester in Britain. They were made of
Pyrenean silver fir and the staves were one and a half inches thick and featured grooves where the heads fitted. They had Roman numerals scratched on the surface of each stave to help with reassembly. After the
Battle of Hastings in 1066, when the
Normans started settling in England, much wine was shipped over the
English Channel from France.
On ships Ships, in the
age of sail, provided much work for coopers. They made water and provision casks, the contents of which sustained crew and passengers on long voyages. They also made barrels to contain high-value commodities, such as wine and sugar. The proper stowage of casks on ships about to sail was an important
stevedoring skill. Casks of various sizes were used to accommodate the sloping walls of the hull and make maximum use of limited space. Casks also had to be tightly packed, to ensure they did not move during the voyage and endanger the ship, crew and cask contents. Whaling ships in particular, featuring long voyages and large crews, needed many casks – for
salted meat, other provisions and water – and to store the whale oil.
Sperm whale oil was a particularly difficult substance to contain, due to its highly viscous nature, and oil coopers were perhaps the most skilled tradesmen in pre-industrial cooperage. Whaling ships usually carried a cooper on board, to assemble shooks (disassembled barrels) and maintain casks. In the 16th century, the company won the right for coopers to be independent from breweries. The practice continued well into the 20th century. Prior to the mid-20th century, the cooper's trade flourished in the United States; a dedicated trade journal was published, the ''National Cooper's Journal'', with advertisements from firms that supplied everything from barrel staves to purpose-built machinery. After the
Industrial Revolution at the turn of the 19th century and
prohibition in the United States in the early 20th century, there was less demand for barrels, and over time, various other containers were manufactured for shipping goods, including
shipping containers, metal drums, and
corrugated cardboard. Storing, shipping, and fermenting alcohol became the main uses for wooden barrels. In the early days, Guinness employed its own team of up to 300 highly-paid coopers in the brewery, making barrels which would be shipped around the world, and wooden casks were used by the brewery for nearly two centuries. In 1946
aluminium kegs were introduced, and over time gradually replaced the wooden barrels, until these in turn were replaced by stainless steel in the late 1980s. By 1961 there were only 70 coopers still employed by Guinness, and the last wooden cask was used in March 1963. ==Construction, types, and sizes ==