# Will it Work?

I’ve got a 10-gal pot and I’m planning on a 5-gal BIAB stout recipe. The grain bill calls for 10.5 lbs. of grain and the water calculation for 8.04 gals. for a single infusion mash (mash efficiency of 0.68%), runoff volume of 5.95 gals., final boil volume of 5.5 gals prior to be siphoned into the fermenter.

All calculations were from formulas in Designing Great Beers by Ray Daniels.

Will 10.5 lbs of grain and 8.04 gals of water fit into a 10 gal pot or do I need to start with less water and grain and then add extract to the boil and sanitized water to the fermenter?

Yes. 10.5lbs of grain @ 3.06 quarts per lb. will take 8.87 gallons of space.

Can I Mash It?

Or you could calculate it yourself:

.08 + (mash thickness (qts/lb) / 4) x total lbs grain = total mash volume

How much volume does a pound of grain take?

Though I haven’t checked the constant or the equation for accuracy, it seems to calculate a little lower than The Green Bay Rackers calculator at 8.11 gallons of space.

It would be a fairly simple, yet interesting, exercise to determine this for yourself, if at all interested in that aspect.

[quote=“lazy ant brewing”]I’ve got a 10-gal pot and I’m planning on a 5-gal BIAB stout recipe. The grain bill calls for 10.5 lbs. of grain and the water calculation for 8.04 gals. for a single infusion mash (mash efficiency of 0.68%), runoff volume of 5.95 gals., final boil volume of 5.5 gals prior to be siphoned into the fermenter.

All calculations were from formulas in Designing Great Beers by Ray Daniels.

Will 10.5 lbs of grain and 8.04 gals of water fit into a 10 gal pot or do I need to start with less water and grain and then add extract to the boil and sanitized water to the fermenter?