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Results for “organic yeast nutrients”
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Microbial monitoring and sanitation practices in wine cellars
Proper sanitation practices in wine cellars prevent the development of undesirable micro-organisms. Although the alcohol concentration of wines limits the micro
By Charl Theron · 7 min read
New tools to help overcome stuck fermentations in wine
Twenty years ago, it was thought that stuck fermentations were mainly due to two things: nitrogen deficiency and the glucose/fructose ratio of the must. Recentl
By Lallemand · 16 min read
Yeast nutrition - can we predict the impact on aroma formation?
PHOTO: Shutterstock.
By Samantha Fairbairn and Florian Bauer · 6 min read
Great wine starts with good geography
In an attempt to define the elusive concept of terroir, Wine Folly’s Madeline Blasberg narrows it down to connecting five dots.
By Carlin Cloete · 6 min read
YAN survey of South African grape musts (Part 1)
PHOTO: Melanie Uys.
By Gabriella Petrovic and Astrid Buica · 8 min read
YAN survey of South African grape musts (Part 2) - the role of YAN supplementation
PHOTO: Melanie Uys.
By Gabriella Petrovic and Astrid Buica · 10 min read
The role of thiamine in sluggish fermentations and crushed dreams
Here is some useful information on preventing thiamine deficiencies from slowing your fermentations.
By James Duncan & Benoit Divol · 9 min read
The trend of natural winemaking
When Noah accidentally brought disgrace upon himself, experiencing that the fermentation of grape juice delivers a product that can cause pleasure and a headach
By Charl Theron · 4 min read
Seaweed-based biostimulants in Vitis vinifera
Little is known about the impact of seaweed extracts in grape production and their influence on grapevine physiology, and stress adaptation mechanisms.
By Liam Samuels, Evodia Setati & Erna Blancquaert · 10 min read
Fruit salad vs varnish - nitrogen sources and their impact on aroma production in wine
Nitrogen is a key element necessary for synthesising amino acids, nucleic acids, vitamins and various other compounds in living organisms, including wine yeasts.
By James Duncan & Benoit Divol · 12 min read
Factors that affect alcoholic fermentation
The alcoholic fermentation of grape juice is affected by the yeast strain, sugar concentration, alcohol concentration, fermentation temperature, presence of oxygen, concentration of assimilable nitrogen, vitamins and minerals, survival factors, preservatives, carbon dioxide and volatile acidity.
By Charl Theron · 7 min read
