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Solera is a process for aging liquids such as wine, beer, vinegar, and brandy, by fractional blending in such a way that the finished product is a mixture of ages, with the average age gradually increasing as the process continues over many years. The purpose of this labor-intensive process is the maintenance of a reliable style and quality of ...
Also known as headspace, the unfilled space in a wine bottle, barrel, or tank. Derived from the French ouillage, the terms "ullage space" and "on ullage" are sometimes used, and a bottle or barrel not entirely full may be described as "ullaged". [6] It also refers to the practice of topping off a barrel with extra wine to prevent oxidation.
Spanish wine. A glass and bottle of Spanish Tempranillo wine, from Bodegues Ramon Roqueta, Catalunya DOP. Traditional vineyards are common sights in the countryside. Spanish wine (Spanish: vino español or vino de España) includes red, white, and sparkling wines produced throughout the country.
Wine grapes from the Guadalupe Valley in Ensenada, Baja California, Mexico. Winemaking, wine-making, or vinification is the production of wine, starting with the selection of the fruit, its fermentation into alcohol, and the bottling of the finished liquid. The history of wine -making stretches over millennia.
Hardened steel. The term hardened steel is often used for a medium or high carbon steel that has been given heat treatment and then quenching followed by tempering. The quenching results in the formation of metastable martensite, the fraction of which is reduced to the desired amount during tempering. This is the most common state for finished ...
Differential hardening is a method used in heat treating swords and knives to increase the hardness of the edge without making the whole blade brittle. To achieve this, the edge is cooled faster than the spine by adding a heat insulator to the spine before quenching. Clay or another material is used for insulation.
The stress at initial yield is σ0. Work hardening, also known as strain hardening, is the process by which a material's load-bearing capacity (strength) increases during plastic (permanent) deformation. This characteristic is what sets ductile materials apart from brittle materials. [1] Work hardening may be desirable, undesirable, or ...
The Heidelberg Tun (German: Großes Fass), or Great Heidelberg Tun, is an extremely large wine vat contained within the cellars of Heidelberg Castle. There have been four such barrels in the history of Heidelberg. In 1751, the year of its construction, the present one had a capacity of 221,726 litres (58,574 U.S. gallons).