This is more than just tart. It's medicinal, fusel, alcoholic! It screwed up my taste buds for the rest of the day. This is also the 1st time I've ever used campden, pectic and yeast energizer in my ciders. It is also the 1st time I did not soak a carboy in StarSan. I just put 1 or 2 quarts in and gave it a good swirl. Anywho, I will try again in a few weeks.