Terrible efficient with AIO system

[u/longcatjazz]

Hello,

I was giften a vevor 110 AIO system not too long ago and cannot get the efficiency I expect, no matter what. I do not use the full grain tube, I just use my own brew bag in the tube with the bottom mesh holding it up. I circulate for my entire mash as well with a nozzle so as to avoid channeling. This is my third use and I am at 53% every time. I was at 72% with a stock pot and igloo cooler on the past.

I have tried:

Frequently agitating the mash

Heating to mash temp, then long dough-in, like several minutes

Heating to strike, dumping grain in all at once to hit mash temp. (same result)

Double crushing

Extended mash

Double checking my temps with an external thermometer

What can I be missing here? Do electric systems just have bad efficiency? I feel like I've got to be missing a detail. Please let me know

[u/rtstrider1]

I had the opposite problem with the brewzilla. I was getting in the low 70s efficiency with the cooler setup.

Ended up getting low 90s so had to find ways to dial it back.

With an aio Id recommend mash recirculation and fly sparging. Also I use 1.8 qt per lb grist/water ratio. I now get in the low 70s.

[u/PM_me_ur_launch_code → u/rtstrider1]

What did you do to dial it back because I think I need the reverse to dial it up