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Category Archives: Chemistry

The Mechanism Behind Astringency in Coffee

In this post, I discuss my updated understanding of the mechanism by which astringent compounds can be extracted from coffee.

Posted byjgagneastroAugust 1, 2022Posted inChemistry, Extraction, Perception of Taste2 Comments on The Mechanism Behind Astringency in Coffee

Reaching Fuller Flavor Profiles with the AeroPress

In this post, I discuss the AeroPress and how it can be used to reach flavor profiles similar to cuppings and high-EY pour overs.

Posted byjgagneastroSeptember 7, 2021September 8, 2021Posted inAeroPress brews, Brew Methods, Chemistry, Cupping, Extraction, Perception of Taste, RecipesTags:AeroPress15 Comments on Reaching Fuller Flavor Profiles with the AeroPress

Measuring Brew Water Properties

This post describes some available tools for measuring water properties relevant to coffee and presents ways and a web tool to hack aquarium kits for a better precision.

Posted byjgagneastroFebruary 25, 2020Posted inChemistry, Tools, Water for CoffeeTags:Water Chemistry, Water for Coffee3 Comments on Measuring Brew Water Properties

What is Astringency ?

In this post I describe what causes astringency, and talk about ideas how we could potentially measure it or remove it post brewing.

Posted byjgagneastroNovember 12, 2019November 13, 2019Posted inChemistry, Perception of Taste, Tasting Notes, ToolsTags:Coffee brewing, Coffee geeks, Coffee science45 Comments on What is Astringency ?

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