Rapid Induction of Ageing Character in Brandy Products. Ageing and General Overview
Abstract
Ageing is one of the most important and most costly factors determining the quality of distilled beverages.As part of a broader study that investigated techniques for the rapid induction of a desirable ageing character
in brandy products, the effect of maturation for eight months at room temperature and below 0°C in
glass bottles, and the relationship/correlation between treatment, chemical composition or wood-derived
congener concentrations and pot-still brandy sensory quality, are reported on. Extracts representing different
oak types (American or French), levels of toasting, suppliers (i.e. cooper or commercial), types of
medium (ethanol or water), concentration types (open or reduced pressure) and concentration levels (by
45, 65 or 85%) were added to pot-still spirit and stored for eight months in glass containers. Matured and
unmatured (control) pot-still brandy samples were analysed for wood-derived compounds by means of
HPLC and GC. The different treatments brought about chemical changes with a noticeable impact on the
acceptability of oak extracts and the overall quality of pot-still brandies. Through application and selection
of the correct oak type and treatment combinations, it therefore was possible to rapidly produce good
quality brandies without the use of expensive oak barrels. Maturation in glass bottles had a lesser impact
on further improvement of the final product, not the same as the reported improvement from ageing in
wooden barrels. The production of good quality brandies and the rapid induction of the ageing character
through certain treatment combinations, with little need for further maturation, therefore was achieved in
glass. The complexity of brandies aged in glass rather than wooden barrels might be different, since ageing
in wooden barrels brings about all the characteristics, complexities and flavours that characteristically
evolve over time under the more oxidative conditions in wooden barrels. Future research should focus on
a combination of both technologies, using certain oak treatment combinations together with traditional
barrel maturation for the improvement and rapid induction of the ageing character in brandy products.
Downloads
A copyright form will be e-mailed to the corresponding author when the manuscript has been accepted for publication.
In principle, the Author agrees to the following when he/she signes the copyright agreement:
I hereby assign to the SOUTH AFRICAN SOCIETY FOR ENOLOGY AND VITICULTURE (SASEV) the copyright of the text, tables, figures, supplementary material, illustrations and other information (the Material) submitted with the manuscript to be published in SOUTH AFRICAN JOURNAL OF ENOLOGY AND VITICULTURE (SAJEV) (the "Article"). The copyright becomes effective from the date the Article has been accepted for publication in SAJEV.
This is an open access journal, and the authors and journal should be properly acknowledged, when works are cited.
Author's may use the publishers version for teaching purposes, in books, theses, dissertations, conferences and conference papers.
A copy of the authors' publishers version may also be hosted on the following websites:
- Non-commercial personal webpage or blog.
- Institutional webpage.
- Authors Institutional Repository.
The following notice should accompany such a posting on the website: This is an electronic version of an article published in SAJEV, Volume XXX, number XXX, pages XXX - XXX, DOI. Authors should also supply a hyperlink to the original paper or indicate where the original paper (www.journals.ac.za/index.php/sajev/) may be found.
Authors publishers version, affiliated with the Stellenbosch University will be automatically deposited in the University's Institutional Repository SUNScholar.
Articles as a whole, may not be re-published with another journal.
The following license applies:
Attribution CC BY-NC-ND 4.0