This is for the 8, but the 10 is simply adding more sugar. See the quote from Denny.
There was a website posted with a clone that Denny Conn had done a few times and recommended. Here is everything converted over to pounds and Fahrenheit. The notes the original brewer are included.
Here is some info that Denny also gave me:
according BLAM the only difference is the amount of sugar. BLAM lists 8 as 1.078 and 10 as 1.096. Sugar gives you about 9 points in 5 gal., so for a 10 you'd use 2 more lb. of sugar than in an 8. That Rochefort recipe absolutely rocks! I've brewed it many times. Use dark candi or D2 syrup for the sugar in it. One bottle of syrup = 1 lb. of sugar.
Rochefort 8 Clone18-B Belgian Dubbel
Size: 10.5 gal
Efficiency: 73.0%
Attenuation: 75.0%
Calories: 269.24 per 12.0 fl oz
Original Gravity: 1.080 (1.062 - 1.075)
|==============================#=|Terminal Gravity: 1.020 (1.010 - 1.018)
|============================#===|Color: 23.8 (10.0 - 14.0)
|================================|Alcohol: 7.96% (6.0% - 7.5%)
|============================#===|Bitterness: 31.32 (15.0 - 25.0)
|================================|Ingredients:3.22 oz Styrian Goldings (4.2%) -
added during boil, boiled 75.0 min1.4 oz Hallertau Hersbrucker (3.5%) -
added during boil, boiled 30.0 min0.7 oz Hallertau Hersbrucker (3.5%) -
added during boil, boiled 5.0 min1.1 lbs Flaked Corn (Maize)
20.81 lbs Pilsener
3.29 lbs CaraMunich 40
2.85 lbs Candy Sugar
0.44 lbs Carafa Special
1.1 lbs Special B Malt
0.7 oz Corriander Seed -
added during boil, boiled 5.0 min4.0 ea WYeast 1762 Belgian Abbey II
2.0 ea Servomyces -
added during boil, boiled 10.0 min1.0 ea Whirlfloc Tablets (Irish moss) -
added during boil, boiled 10.0 minSchedule:Ambient Air: 70.0 °F
Source Water: 60.0 °F
Elevation: 0.0 m
00:33:08
Mash In -
Liquor: 9.61 gal; Strike: 149.3 °F; Target: 140.0 °F01:33:08
Saccharification Rest -
Rest: 60.0 min; Final: 154.4 °F01:38:08
Mash Out -
Heat: 5.0 min; Target: 75 °C02:23:08
Sparge -
Sparge: 5.03 gal sparge @ 170.0 °F, 11.49 gal collected, 45.0 min; Total Runoff: 11.78 galNotes:Mashing: 3 liters per kg malt. Flaked corn boiled separately before adding to the mash.
Yeast: Wyeast 1762 Belgian Abbey II or recultered from a bottle of Rochefort. The winning recipe used the Wyeast.
Fermentation temperature was 68F-72F
Below, I listed some findings based upon variations in the recipes. Of course, this wasn't set up in a randomized, replicated fashion, but I think it might be of interest nonetheless:
1) The use of chocolate malt instead of the dehusked Carafa resulted in a bit of a licorice taste or even a bit of a burned taste.
2) If you can't get Carafa Dehusked, look for a debittered/dehusked dark chocolate/Black malt. It can also be had from Weyermann
3) The use of the original yeast instead of the Wyeast didn't change much in the tasting profile. Which makes sense, because they're said to be similar.
4) The second placed beer (Theo Verschoor) was fermented at 28C, which resulted in a very strong banana and fruit aroma!
5) The third placed beer (Edwin Hoogedoorn) tasted very close to the second, but had a less pronounced aroma, because of a lower temperature fermentation.
6) To get a color more resembling the original, it is suggested to slightly bring down the amount of Carafa.
7) Some beers had problems during bottle-conditioning. When bottling make sure to do it in time or to add a healthy yeast.
Samples with added (non-Rochefort) yeast for conditioning did not seem to result in a different taste.
http://www.geocities.com/iluvhops/brouw ... fort8.html
I am told that you can make Rochefort 10 simply by increasing the amount of Candy sugar to each the proper OG[size=-1]Results generated by
BeerTools Pro 1.0.30[/size]