Home > biab, Brew Log, multi-batch, parti-gyle, techniques > Brew Log 1.10.10 – BIAB Parti-Gyle multi-batch madness

Brew Log 1.10.10 – BIAB Parti-Gyle multi-batch madness

January 10, 2010 Leave a comment Go to comments

Allen and I are experimenting with a modified parti-gyle with biab; not a real parti-gyle, but inspired by. The beers we are making are a belgian tripel and a belgian pale ale, starting with the tripel as first mash and the pale with the seconds.

We put the grains for the tripel in and mashed, pulled the bag and drained a bit, put the bag with grains in Allen’s picnic cooler mash tun, batch sparged 6 gallons for the pale, then sparged a few more gallons to get the tripel up to volume.

We started with 22.25 pounds of grain in a little over 7 gallons water at 150 degree mash (had a bit of trouble mashing at desired temp, ended up mashing a few degrees low). The grains were in a bag (BIAB) in a ten gallon kettle. Mashed for 60 minutes. We pulled the bag up and let it drain for a few minutes. This left approximately 4 gallons in the kettle at gravity of 1.099 for the tripel. Then we dropped the bag of grains in a picnic cooler with false bottom and spout to serve as lauter tun. We poured 6.5 gallons water at 170 F in the tun – this water included an additionl 1 pound crystal malt for the belgian ale that we introduced to the hot water a few minutes prior to adding to the tun. We stirred this and then drained. We collected 6 gallons wort at 1.049 gravity from this batch sparge. Then we sparged again with 2 gallons at 170F and collected 2 gallons at @ 1.030 and added that to the wort for the tripel. To complete the recipes, we put 2 pounds of sugar in the tripel and 1.5 pounds in the pale.

Looking back, we should have run the 2 gallons through to get the tripel up to volume first. This would have gotten a bit more sugar in the tripel and avoided getting the color from the crystal malt in the tripel. We didn’t need the sugar in the tripel, but doing so would be more true to the technique of first run for the tripel and second for the pale.

Brew day took just over 6 hours start to finish. It would have been around an hour shorter but… it was 22 degrees out and the propane in the tanks froze and we couldn’t get the worts to boil. We hadn’t seen that happen before and it took a while to figure out what the problem was and remedy it. This also meant the bittering hops in the tripel were in for almost 2 hours. The tripel did taste a bit more bitter than expected, but maybe it will mellow as it ferments.

Belgian Tripel recipe – 4 gallons from original mash plus 2 gallons from second sparge

20 lbs. Belgian Pils
1.5 lbs.Belgian Aromatic
.75 lbs.Cara-Pils Malt
2 lbs. Sugar Clear
2 oz. Tettnanger (Pellets) boiled 60 min.
1 oz. Saaz (Pellets) boiled 15 min.
1 oz. Saaz (Pellets) boiled 5 min.
Yeast : White Labs WLP530 Abbey Ale
OG: 1.097
checked gravity of the tripel on 1.19.10 – 1.026 taste is sweet and spicy, very cloudy, it seems to have a ways to go. I agitated the fermenter and closed it up.

1.23.10 – gravity at 1.016, still sweet and spicy and cloudy, a little alcohol heat and less sweet than a few days ago. that would put apparent extraction at over 80% and abv of 10.75%. serious stuff

2.2.10 – 1.014 – yeast coming on strong, bubblegum flavors, some spice, acid? or tart
bottled 2.7.10 @ 1.013 or 14, alcohol is a bit hot, maybe carbonation will help, ABV 11%, apparent attenuation 84.5%

Belgian Pale Ale recipe – 6 gallons from first sparge (seconds)

20 lbs. Belgian Pils
1.5 lbs.Belgian Aromatic
.75 lbs.Cara-Pils
1 lbs. Crystal Malt 40°L
1.5 lbs.Sugar Amber
1 oz. Cascade (Pellets) boiled 60 min.
1 oz. Saaz (Pellets) boiled 15 min.
1 oz. Saaz (Pellets) boiled 5 min.
Yeast : White Labs WLP530 Abbey Ale
OG: 1.062

ended up at 1.008 or less, abv 7.1%, aa 86.5%; nice smooth rounded in comparison to tripel,

  1. Johnny Brooke - Beer Review Dude
    April 15, 2011 at 3:17 am

    Any update on how these turned out? Thinking of doing something similar with an IIPA and a pale ale.

    • April 23, 2011 at 5:23 pm

      turned out as expected, we saw no difference in these brews due to the procedures. The Tripel was a little too big and hot from alcohol, the color was a touch dark and sweet as we added crystal too soon.

      i think this process works fine, batch sparge in the bag for a parti gyle.

      just think through your recipes and time your grains you’ll have a blast and end up with good beer. IIPA then pale makes good sense.

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