After almost two years my apple wine still is not good enough to drink. probably never will be. So, with this last cold spell we had i freeze concentrated it twice and out of 9 liters i ended up with 3 liters of concentrate. Now I'm down to two because i capped one bottle and as it warmed up it exploded. It tastes better now, but I'm thinking of aging for another year or two. It was either this or throw it away, i did save 4 bottles of wine just to see what happens in a year or two.