micro-oxygenation in contemporary winemaking - Cape Wine ...
micro-oxygenation in contemporary winemaking - Cape Wine ...
micro-oxygenation in contemporary winemaking - Cape Wine ...
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Micro-<strong>oxygenation</strong> <strong>in</strong> Contemporary W<strong>in</strong>emak<strong>in</strong>g2000; du Toit, 2007a). The volume of the tank is less critical than the height, and thetechnique has been used on a wide range of tank sizes. The diffuser is prone to foul<strong>in</strong>g soit needs to be thoroughly cleaned between uses.Figure 1: Basic Components of a Micro-<strong>oxygenation</strong> SetupSource: (Parish et al., 2000)Internationally, the ma<strong>in</strong> suppliers of basic <strong>micro</strong>-<strong>oxygenation</strong> equipment <strong>in</strong>clude OenoDev(V<strong>in</strong>ovation, 2001b), Parsec (Parsec, 2008) and Stav<strong>in</strong>/Westec Tanks (Stav<strong>in</strong>, 2008). Thema<strong>in</strong> distributor of <strong>micro</strong>-<strong>oxygenation</strong> units <strong>in</strong> South Africa is Re<strong>in</strong>es Trad<strong>in</strong>g/Euroberry(Euroberry, 2008b) who are the local agents for Parsec. By mid 2008, Euroberry claimed tohave 23 <strong>micro</strong>-<strong>oxygenation</strong> clients <strong>in</strong> South Africa, <strong>in</strong>clud<strong>in</strong>g a wide range of producers -from bulk-produc<strong>in</strong>g co-operatives to premium quality estates (Euroberry, 2008a). Theequipment provided by the three different manufacturers differs ma<strong>in</strong>ly <strong>in</strong> the dos<strong>in</strong>gcontrol. The OenoDev and Parsec mach<strong>in</strong>es are based on similar pr<strong>in</strong>ciples thoughOenoDev’s controller is electrochemical and measures the dose required <strong>in</strong> ml O 2 /Lwhereas Parsec’s units are <strong>micro</strong>processor controlled and measure <strong>in</strong> mg/L (Table 4). TheStav<strong>in</strong> Ox Box is a more simple device that regulates oxygen flow which makes dos<strong>in</strong>g alittle more complicated (Loch, 2002). A number of different models are available from eachsupplier accord<strong>in</strong>g to the cellar’s needs - from small, manual devices that can be movedfrom tank to tank, to large built-<strong>in</strong> automated units that regulate <strong>micro</strong>-<strong>oxygenation</strong> <strong>in</strong>multiple tanks at once (Table 4).20