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Stability of Grounds Total Dissolved Solids Samples in Spent Coffee
Jan. 4, 2022, 2:02 p.m. | Robert McKeon Aloe
Towards Data Science - Medium towardsdatascience.com
COFFEE DATA SCIENCE
Challenging convention
A few months ago, I tried an experiment where I put coffee grounds directly onto a refractometer to read Total Dissolved Solids (TDS) as a measure of how many solubles remained in spent coffee. I called this grounds TDS or gTDS to distinguish how the sample is collected. The aim was to get a reading on solubles that might not be easy to extract. A reading did come up, and after some testing, it seemed …
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