New to the craft and have been somewhat successful except I cannot get above 88% ABV, I have a reflux unit 4' X 2" and does 25l batch. Yesterday I had a power failure during a spirit run and power was off for several hours. When power came back, I started everything up again, took an hour to get boiling but I could not control the temp in the head, kept running at 95+, opened the valve to cool the top of the tower and temp went to below 70, I kept adjusting and it would just go up and down, never settle in the right temp range, I took off about a gallon of spirits before the power failure, is this batch history or can it be salvaged? What was the problem anyway?