jacksonbrown
Well-Known Member
When I first built my MLT cooler I was getting 85%-92% efficiency from my first five batches. Then it started dropping to the mid 70's. now I feel lucky if I hit 65%. My method hasn't changed. I've been using different base malts in different batches, so I can't see it being a single malt causing it. What in the world can be causing such a drastic drop over time the past 9 months?