Emma Rice of Hattingley Valley Wines on Wine Analysis and Lab Work Part 2

This show was published 25 March 2022

Overview

This episode we talk about the specific tests that wines undergo through different wine-making stages. Emma tells us about the use of digital refractometers to measure brix levels in the grapes to help determine when to pick. Brix is a term used to measure sugar levels in grape juice. The higher the brix, the higher the sugar and the higher the potential alcohol level in the wine.
We talk about tests to determine YAN levels (Yeast Assimilable Nitrogen) in the wine pre-fermentation and the tests to analyse malo acid in the grapes before fermentation to decide whether the wine will go through malolactic fermentation.

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