Oak adjuncts are oak products used to supplement/replace the use of oak barrels in winemaking. An adjunct is processed from the same wood used for barrel manufacture, into a product that is easily used in winemaking, but importantly at a fraction of the cost of new barrels.
A 200 year old oak tree cut down to manufacture barrels usually results in more than 80% of wasted wood. The wood rejected from barrel manufacture due to cracks, wavy grain etc and thus would not make a ‘wine tight’ barrel can be utilised as an adjunct as we are only after the flavour derived from the wood during toasting. Adjuncts are thus the more environmentally friendly option in winemaking and with today’s research technology and understanding of wood toasting regimes, adjuncts combined with micro-oxidation techniques are proven to emulate the results obtained from barrels.
Grape & Oak Tannins are supplied in 500gram polylaminate bags
At Suber Oak we see oak adjuncts being used in three main areas of winemaking
a/ At fermentation : – Powders, Fine Chips, (Mini Staves Tank Staves)
b/ Wine maturation : – Granular Chips, Blocks, Mini Staves, Tank Staves
c/ Prior to bottling : – “XOS” Blocks, Powders
Most winemakers will use small chips or powders which present no problems during pump overs or when racking off. Winemakers also use mini staves, blocks and tank staves for white wine, particularly Chardonnay During maturation:
Tank staves, Mini staves, Blocks and Large Chips. (Our Tank staves are supplied in bundles of ten in a ‘fan’ style for easy attachment into tanks) The other products are supplied in 5 Kg (11#) food grade infusion nets Prior to Bottling:
Our range of special ‘Finishing Oaks’ to provide fine oak flavours and aromatics with minimal hard oak tannins
The grape and oak tannins are usually bench trialled to establish a preferred dose rate which can vary between 2 -25PPM depending on the wine and outcomes required
a/ At fermentation : – Condensed tannins Oxidation & Colour Stability
b/ Wine Racking : – Condensed tannin Oxidation protection
c/ Prior to bottling : – Grape and Oak tannins for structural and aromatics