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Publications library

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Blogs and articles

Scientific and popular blog posts and articles published on various online and printed platforms

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Winter issue, 2022

Sparging of white wines: does it affect composition?

By Wessel du Toit , James Walls 

and Carien Coetzee

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Wine & Viticulture Journal

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July 28, 2022

Vacuum during bottling

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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May 30, 2022

Comparing bentonites

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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April 1, 2022

Factors affecting sparging efficiency (Part 1)

by Dr. Carien Coetzee

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Winetech Technical

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February 28, 2022

Juice solids and clarification 101

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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December 9, 2021

Nutriferm X – Frequently Asked Questions

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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October 30, 2021

CO2 sparging of Sauvignon Blanc JUICE

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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September 29, 2021

ELEMENTAL SULPHUR SPRAY – PART 1:
RESIDUE CONCENTRATIONS AT HARVEST

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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August 29, 2021

LIGHT-STRIKE
PART 1

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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June 30, 2021

KPA TO THE RESCUE – THE SOLUTION TO TARTRATE STABILISATION

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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January 29, 2021

Strategies for producing Sauvignon blanc with reduced alcohol content – Part 1

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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December 10, 2020

Testing different fermentation vessels for the production of Sauvignon Blanc wines

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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November 23, 2020

LADYBUG TAINT: PART 1

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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September 29, 2020

ESTERS 101 – PART 2

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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August 11, 2020

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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July 8, 2020

Late Spring mechanical shaking

ditch the Botrytis, keep the yield

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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May 20, 2020

WINTER FERMENTED SAUVIGNON BLANC – INNOVATION GIVING SOUTH AFRICAN WINERIES AN EDGE

by Dr. Carien Coetzee

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Concours Mondial du Sauvignon

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April 23, 2020

LATENT H2S FORMATION – HOW IS IT POSSIBLE?

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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​March 23, 2020

HOW SO2 SPEEDS UP OXYGEN REMOVAL – A RESEARCH SUMMARY

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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​February 18, 2020

FREE-RUN vs PRESSING? THE EFFECT ON THE VOLATILE THIOLS

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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January 21, 2020

EFFECT OF MECHANICAL HARVESTING ON SAUVIGNON BLANC PROTEIN CONTENT

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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December 21, 2019

HOW SHIPPING TEMPERATURES AFFECT SAUVIGNON BLANC COMPOSITION – PART 1

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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December 1, 2019

RANDOM OXIDATION AND THE ROLE OF BOTTLE DIMENSIONS

by Dr. Carien Coetzee

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Wineland Technical

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November 18, 2019

HPP TECHNOLOGY TO REDUCE SO2 REQUIREMENTS – THE EFFECT ON SAUVIGNON BLANC COMPOSITION

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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9 October, 2019

by Dr. Carien Coetzee

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wine.co.za

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July 24, 2019

THE EVOLUTION OF SAUVIGNON BLANC’S FRIEND (3MH) AND FOE (H2S) DURING BOTTLE STORAGE

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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June 20, 2019

STYLISTIC DIVERSITY IN SOUTH AFRICAN SAUVIGNON BLANC

by Dr. Carien Coetzee

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Concours Mondial du Sauvignon

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May 30, 2019

VOLATILE THIOLS: CONJUGATED PRECURSORS ARE NOT THE MAIN SOURCE. DID YOU KNOW THAT?

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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April 5, 2019

MINERALITY IN SAUVIGNON BLANC – PART 1

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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March 11, 2019

SA A FAVOURITE AT CONCOURS MONDIAL DU SAUVIGNON

by Dr. Carien Coetzee

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February 18, 2019

INCREASING METHOXYPYRAZINES USING SKIN CONTACT AND INCREASED PRESSURES…

MORE TROUBLE THAN IT IS WORTH?

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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May 2018

 

Adjusting Sauvignon Blanc aroma and flavor complexity:

PRESERVING AND INCREASING THIOLS

by Dr. Carien Coetzee

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Wines and Vines Analytics

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March, 2018

Glucose & Fructose for the prediction of final alcohol

by Dr. Carien Coetzee

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Vinlab

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November, 2017

Geosmin…soiling my wine

by Dr. Carien Coetzee

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Vinlab

Red Wine

February, 2017

Comparing the Glories, Iland and Bovine serum albumin when measuring phenolic compounds and whether there is a correlation between grape and wine content?

co-authored by Dr. Carien Coetzee

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Wineland Media

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January, 2017

Méthode Cap Classique, Part 2: Processing and primary fermentation

by Dr. Carien Coetzee

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Vinlab

Grapes

October, 2013

Colour and phenolics in red grapes – a comprehensive survey of the distribution of these parameters in different red grape blocks from the Robertson area

co-authored by Dr. Carien Coetzee

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Wineland Media

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September 1, 2022

Merlot: Steering away from the flat and flabby

by Dr. Carien Coetzee

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Winetech Technical

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July 27, 2022

Serving temperature

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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May 4, 2022

STEADY SAUVIGNON IDEAL FOR CANNING

by Dr. Carien Coetzee

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Concours Mondial du Sauvignon

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March 30, 2022

Glycerol – does it really contribute to mouthfeel?

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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February 27, 2022

Washing grapes

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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December 1, 2021

Bioprotection – a microbial alternative to SO2

written by Dr. Carien Coetzee for Laffort SA

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Winetech Technical

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October 1, 2021

Adding antioxidants to Sauvignon blanc musts (Part 2)

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Winetech Technical

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July 31, 2021

SHAKEN AND STIRRED – DOES PHYSICAL AGITATION DURING TRANSPORT AFFECT WINE?

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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June 30, 2021

FAULT FOCUS – GEOSMIN DRAGGING YOUR WINE THROUGH THE MUD

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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May 28, 2021

Copper-containing fungicide and the effect on the 3-mercaptohexanol concentration

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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February 3, 2021

Strategies for producing Sauvignon blanc with reduced alcohol content – Part 3

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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January 1, 2021

Do smaller thiol increases have a significant sensorial effect?

BY CARIEN COETZEE, MATIJA LESKOVIC, JEANNE BRAND & WESSEL DU TOIT

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Wineland Technical

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December 1, 2020

New developments in protein stability

by Dr. Carien Coetzee

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Wineland Technical

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October 27, 2020

Sauvignon Blanc and plant water status

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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September 29, 2020

ESTERS 101 – PART 1

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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August 1, 2020

Yeast and its ability to release thiols

by Dr. Carien Coetzee

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Wineland Technical

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June 30, 2020

Removing copper-H2S complexes using membrane filtration

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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May 20, 2020

COPPER AND SO2 USED TOGETHER – EFFECT ON H2S

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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​April 23, 2020

RETHINKING COPPER FOR THE TREATMENT OF H2S

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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March 18, 2020

OXYGEN CONSUMPTION BY YEAST LEES

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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February 12, 2020

HAND HARVEST VS MECHANICAL HARVESTING? THE EFFECT ON VOLATILE THIOLS

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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January 19, 2020

ROTUNDONE PART 1: THE AROMATIC COMPOUND RESPONSIBLE FOR PEPPERY NOTES IN SHIRAZ

by Dr. Carien Coetzee

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Shiraz SA

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​December 22, 2019

HOW SHIPPING TEMPERATURES AFFECT SAUVIGNON BLANC WINE COMPOSITION – PART 2

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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December 4, 2019

GRAHAM BECK’s 2014 CUVÉE CLIVE – A SHOWCASE OF POWER AND ELEGANCE

by Dr. Carien Coetzee

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wine.co.za

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October 31, 2019

MANAGING GREEN AROMAS IN THE VINEYARD: METHOXYPYRAZINES

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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September 30, 2019

CONSUMPTION RATES: OXYGEN AND SULPHUR DIOXIDE

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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August 28, 2019

POTASSIUM POLYASPARTATE (KPA). ENSURING TARTRATE STABILITY IN SAUVIGNON BLANC...SINCE 2019

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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July 16, 2019

MINERALITY IN SAUVIGNON BLANC – PART 4

​Salinity – the cousin of Minerality

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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June 19, 2019

MINERALITY IN SAUVIGNON BLANC – PART 3 

Soil minerals in wine…

unromantically disproven

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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May 17, 2019

MINERALITY IN SAUVIGNON BLANC – PART 2

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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April 1, 2019

LOW ALCOHOL SAUVIGNON BLANC THE BREADWINNER OF TOMORROW

by Dr. Carien Coetzee

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February 27, 2019

STABILITY OF SAUVIGNON BLANC AROMA AFTER FERMENTATION

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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September 2018

CHENIN BLANC VS SAUVIGNON BLANC – THIOL LEVELS IN YOUNG WINES

Co-authored by Dr. Carien Coetzee

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Wineland media

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April 2018

Adjusting Sauvignon Blanc aroma and flavor complexity:
GRAPE DERIVED FRUITY

VOLATILE THIOLS

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Wines and Vines Analytics

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November, 2017

EVERYONE'S BUZZING ABOUT 4MMP

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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April, 2017

Delle Units: Alcohol-sugar combination to achieve microbial stabilization in sweet wines

by Dr. Carien Coetzee

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Vinlab

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February, 2017

Méthode Cap Classique, Part 4: Aging, riddling, disgorging and corking

by Dr. Carien Coetzee

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Vinlab

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January, 2017

Méthode Cap Classique, Part 1: Viticulture

by Dr. Carien Coetzee

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Vinlab

White Wine

September, 2014

Factors influencing the consumption of oxygen in wine

co-authored by Dr. Carien Coetzee

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Wineland Media

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Aug 31, 2022

How polyphenols can influence the aroma of Sauvignon blanc wines

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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May 31, 2022

Wine Lees

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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May 1, 2022

Factors affecting sparging efficiency (Part 2)

by Dr. Carien Coetzee

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Winetech Technical

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March 10, 2022

STEERING AWAY FROM FLAT AND FLABBY MERLOT

by Dr. Carien Coetzee

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Winetech

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January 1, 2022

Cooling Sauvignon blanc grapes before processing – is it worth the effort, time and energy?

by Dr. Carien Coetzee

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Winetech Technical

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October 31, 2021

The beauty of “blackcurrant” aroma

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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September 30, 2021

ELEMENTAL SULPHUR SPRAY – PART 2:
RESIDUES DURING WINEMAKING

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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August 30, 2021

LIGHT-STRIKE
PART 2

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa

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July 30, 2021

FAULT FOCUS – “CORKED” WINE UNDER SCREWCAP?

by Dr. Carien Coetzee

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Sauvignon Blanc South Africa