The direct answer is yes you can add tartaric and drop your pH. If you do at this point you will want to leave it in your bulk container for another year or so. You definitely do not want to use an acid bled for the reasons stated above.
The big question I asked above is why? Why do you feel you need to reduce your pH? Does it taste like it needs some acid or do you think 3.8 pH is not a good number?
Enter your email address to join: