Testing the Must for Sugar Content, pH and TA (MoreWine!)
Before you add the yeast, you need to test the must to determine if any additions/corrections are needed.
Very rarely will you get a grape that naturally has the required balance of acids, sugars, and pH necessary to create a harmonious wine. When one or more of these elements are out of their ideal ranges, the quality of the wine suffers. Any potential the fruit had to make a nice wine is significantly lowered.
However, if we take the time to correct any possible problems and balance the must early on, the quality of the resulting wine will be better maintained. Correcting a must lays the foundation on which the wine will be built. Even slight adjustments can raise a wine from being just good to great.