77% efficiency 1st time - can that be right?

[Peruvian802]

I just mashed my first all grain in a picnic cooler/toilet hose set up. According to Brewers Friend calculations, I hit just under 77% efficiency for a simple pale ale grain bill. Is that calculator accurate?
I'm pretty psyched if it is!

 

[GrogNerd]

no reason why it wouldn't be possible

if you want confirmation, post your grain bill then your volumes and gravities

 

[TrainSafe]

If you had reliable measurements, then the efficiency calc should be reliable too. Nice work!

 

[Peruvian]

no reason why it wouldn't be possible

if you want confirmation, post your grain bill then your volumes and gravities

10lbs Pale 2 row
1lb Munich
.5 lb Crystal 60l

Gravity 11.5 Brix
Final volume 7 gallons

 

[GrogNerd]

beersmith confirms 77%

good job!

 

[Peruvian802]

The only problem is I overshot my OG. I was looking for 1.052 and hit 1.060!

edit - I should add that I mashed out and batch sparged.

 

[gwapogorilla]

It sure is possible. I just did my 1st all grain, and got an eff. of 86%. But I've got the gap setting on my Monster mill at .029"....which is really pushing the envelope. or from what I've read anyway.
So yes, good job!