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Results for “CaT instability”
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Q&A: Tackling calcium crystals in wine
Calcium instability in wine is a complex issue influenced by various factors. Dr Sami Yammine answers the most significant questions related to calcium crystals in wine and provides guidance on how to prevent them.
By Laffort · 7 min read
The role of metals in the quality and shelf-life of white wine
PICTURE: Shutterstock.
By Francois van Jaarsveld and Francois October · 6 min read
What’s your take: Africa vs South Africa
Vinimark has over the past few years been taking a closer look at the African market. This is largely due to the growing interest in and appreciation for wine o
By Lee-anne · 4 min read
Thiol levels in dry South African Chenin blanc wines (Part 2)
PHOTO: Shutterstock.
By Astrid Buica, Jeanne Brand and Christine Wilson · 8 min read
The role of ellagitannins in the oxidative stability of wine
Ellagitannins play an important role in the maturation of white and red wine in barrels, due to their oxidation ability and flavour characteristics.
By Charl Theron · 4 min read
New tartrate stabilisation methods for wines
The traditional cold stabilisation of tartrates is gradually replaced.
By Charl Theron · 5 min read
Calcium tartrate instability
Calcium-induced instability is a most insidious problem in bottled wines mainly due to the unpredictable and slow formation of crystals, which usually do not come out of solution for some time after bottling and often after commercial release.
By Carien Coetzee · 10 min read
Plant-based proteins in oenology
This article aimed to describe the characteristics and main oenological effects of pea and potato proteins and to evaluate their performance.
By Gianni Triulzi, Alessandra Basana & Pietro Bighiani · 9 min read
Vine and wine innovation watch: The use of carrageenan in calcium tartrate and protein stabilisation of wines
Research is focused on discovering new potential stabilisers that can reduce the likelihood of calcium tartrate precipitation.
By Karien O'Kennedy · 6 min read
Winery wastewater irrigation (Part 2): Soil chemical responses on poorly drained soils
The objective of this study was to investigate the effect of winery wastewater (WWW) irrigation on soil chemical properties and potential environmental impacts at a new paddock at a winery near Stellenbosch where no WWW had previously been applied.
By Reckson Mulidzi & Carolyn Howell · 17 min read
Winery wastewater irrigation (Part 5): Effect on soil K, Na and pH(KCl)
The objective of this study was to determine the effects of irrigation with diluted winery wastewater on selected chemical properties of four soils varying in parent material and clay content.
By Reckson Mulidzi & Carolyn Howell · 23 min read
The rise, pause and reversal of premiumisation: Where does South Africa stand?
To understand the concept of “reverse premiumisation,” one must first grasp the idea of premiumisation itself: the strategic effort to elevate the perceived value of a product, enabling producers to demand higher prices.
By Skye Nolan · 6 min read
