I think I figured out my bad efficiency problem.

[Ryanh1801]

the one thing I skipped out on when I first bought all my all grain stuff was a decent thermometer. I was just using the one that came with my turkey fryer. (Big mistake) Needless to say i just got my new digital one in and calibrated it. turns out my old thermometer was off by all most 20 degrees. No wonder my last batch had such bad efficiency. So instead of being at 153 like i thought I was mashing at 140 or lower. Im surprised I got any type of conversion.

 

[Orfy]

Thermometer and Hydrometr are a must. If not then on your head be it.

Glad you've sussed it!

 

[Lil' Sparky]

Yep, accurate thermos are a must!

Brewed for the first time on Wed w/ my thermosights and digital probe thermos installed in my MLT and HLT. Love 'em!

See here: https://www.homebrewtalk.com/showthread.php?t=28815

and here: https://www.homebrewtalk.com/showthread.php?t=30473

 

[Got Trub?]

I can't tell you how much easier it has been to dial my system in after calibrating my hydrometer, thermometer and volumes for all my brewing containers. It was tedious but definitely time well spent!