* tannins will give a generally acidic taste. Proteins will modulate the tannins and you could have reduced the nitrogen compounds.
* you can test if it is acidic ions by neutralizing to pH 7 and doing a taste comparison
* a guess from the few articles I have read off the web is that with age alcohol will combine with acids in wine and the Total Acidity will decrease over time
* you can test if it is acidic ions by neutralizing to pH 7 and doing a taste comparison
* a guess from the few articles I have read off the web is that with age alcohol will combine with acids in wine and the Total Acidity will decrease over time
Something I didn't record is that the fined versions of both wines felt more acidic on the tongue. I'm going to explore that point as we do more tests.