What do you get when you cant hold temp?

[Griffsta]

Using my MLT (direct fired keggle), I cant hold temp to save my life. Therefore, my grainbed cycles between 156 and 150 for an hour as I TRY to keep it at one temp (i.e. 153).

What exactly is this doing to my final taste? I know what I get if I have a low mash, or a higher temp mash, but what if I have some of both (at different times throughout the mash)?

Also, I would like to thank you guys for all the help recently. I did my 4th and 5th AG batches today and got 78 and 85% efficiencies. Before I was getting 58 to 60%. Thanks a ton for

 

[david_42]

Most likely you will have higher unfermentables, as each cycle de-natures more of the beta enzymes. That would mean a maltier brew.

Consider reducing the size of your heat source. It is much easier to hold a steady temperature when the heat is on most of the time.