Walker's Concord Grape Juice Tartrates

I purchased a Walker's 5 gallon Concord grape juice Hot Pail in September and stored it in a cool
room over the winter. I opened the pail a couple of weeks ago to start the wine and
there was about a pound of large crystals on the bottom. After primary fermentation
the bucket sides and bottom was completely coated with sand like grains.
Now I am guessing that my secondary gallon jugs may get coated with the tartrates also. This is the
first time I have run into these wine diamonds. Interesting...
Larry

Our carboys of concord are always coated with the crystals. After bulk aging and racking of sediment, they are no longer there.

Patience and time.