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YAN

Aug 18 2022

3 Facts About YAN You Probably Forgot

As many winemakers have already jumped into harvest, I wanted to highlight just how important nutrient supplementation can be during primary fermentation! But, wait! Are you confused about what YAN is? Have no fear! You can jump over to my FREE primer on yeast available/assimilable nitrogen (YAN), Fermentation Nutrition: What to Know and Why to […]

Written by Denise Gardner · Categorized: Blog, Cellar Tools · Tagged: Fermentation, Harvest, YAN

Sep 10 2020

3 Things Every Winemaker can do Now to Improve This Year’s Wine Harvest

Some changes require big investment. But many wine quality improvements come with little adjustments to daily cellar practices. These are three places in the cellar that I consider fundamental to developing quality wine. Without these fundamentals, getting stuck in winemaking routines becomes the norm. Old habits die hard, as they say, and without persistence to […]

Written by Denise Gardner · Categorized: Blog · Tagged: Harvest, Winery Sanitation, YAN

Aug 27 2020

Yeast Strain Selection vs. Yeast Nutrition

As a consulting winemaker, I have made the general observation that winemakers tend to take a lot of time in selecting yeast strains to ferment grapes. Many spend significant time deciding if the marketing terms related to wine descriptors they expect to arise by the end of primary fermentation are what they desire in their […]

Written by Denise Gardner · Categorized: Blog, Cellar Tools, Darn Good Winemakers · Tagged: Fermentation, Harvest, YAN

Sep 19 2019

Fermentation Nutrition Explained

One of the easiest ways to reduce incidence of hydrogen sulfide development is by making specific nitrogen adjustments during primary fermentation. As mentioned in the last blog post, poor nutrient management can also lead to stuck fermentations. Years of research has shown winemakers that a must’s starting nitrogen concentration varies from year to year. Thus […]

Written by Denise Gardner · Categorized: Blog · Tagged: Fermentation, YAN

Aug 24 2018

YAN… to the Rescue!

It’s impossible to talk about the pending harvest without talking about YAN. Every year, I run into winemakers asking me what nutrient additions to make when they do not know their starting YAN, or yeast assimilable nitrogen (aka yeast available nitrogen). Not knowing the must’s YAN concentration when treating fermentation with nutrient supplements is equivalent […]

Written by Denise Gardner · Categorized: Blog, Cellar Tools · Tagged: Fermentation, Harvest, YAN

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