I brewed a partial mash kit for the first time, and of course messed up. The kit I brewed was John Palmer’s Elevenses partial mash. Previously I have only done extracts. I did the mash my 5 gallon brew kettle. My starting mash temp was 152 F. (Later I realized it should have been 154 F). I wrapped the kettle in 6 old bath towels. So I figured it would keep the temp fairly steady but at the end of the hour it was down to 145 F. Because the mash started 2 degrees low and dropped 7 degrees from there I put the kettle back on the stove and slowly raised the temperature. Using a low flame I kept the temp between 150-155 degrees for an additional 30 minutes.
So, how bad did I mess up? What can I expect the effects of the low mash temp to be? And did my attempt to compensate help or hurt?