I fermented a RIS in a 10 gallon rum barrel.
I put about 8 gallons of RIS to ferment and topped it off with 2 gallons of an uncarbonated milk stout after fermentation stopped.
I let it age in the barrel for about 6 months and transferred it to two cornies.
The beer taste great.
Trip Queens Brewery
Brewing better than average beer since February 2009
Primary - Air
Secondary - Blood Orange Hefe
Oak Rum Barrel - Sour Saison #2
Bottles: Sour #1
Kegged - Gumball Head Clone, Joco Choco Ringer Brown Ale, 1/4 Nut Notty Brown Ale 1 empty :(