First all grain completed! Overshot OG

[sejasba]

I just completed my first all grain today, I'm pumped! I'm not sure I could have asked for it to go better than it did... I'm not sure why i was so intimidated by this.

I nailed my temps and ended up with about a gallon or so leftover wort, so I apparently compensated a bit much thinking I'd lose more during the boil (I have a wide pot).

The only odd thing was I overshot my target OG of 1.049 and I measured about 1.055. I'm still new to all grain, but I was brewing a NB Chocolate Milk Stout recipe and had to substitute some grains that my LHBS did not have. Could that have anything to do with it? I still haven't dove into figuring out my mash efficiency yet, but I did just plug everything into a calculator at brewersfriend and got this:

Gravity at 100% Efficiency: 1.065 - max
Gravity at 75% Efficiency: 1.050
* Efficiency: 83.57%
Points / Pound / Gallon (ppg): 30.7

I'm not sure my efficiency could really be that high.

 

[masskrug]

Great job. I would not worry about it. I typically strive to get 75-80%. At 84% you must have added something, or didn't have enough water to begin with.

 

[sejasba]

Great job. I would not worry about it. I typically strive to get 75-80%. At 84% you must have added something, or didn't have enough water to begin with.

Actually, I realized I didn't input the right wort volume. I put 6 gallons, which is what I ended up with after the boil, but I really started with just under 8. That changes the numbers significantly, where 100% is 1.049. So it doesn't make sense that my OG was so high.

I'm not too worried, just would like to know what might have happened or what I'm not taking into account.