My most recent brew had 3 bombs (on 9/3/13), and when I cracked them open yesterday, they were way too foamy (all 7 that were opened). Each filled a pint glass with maybe 1 oz of liquid and the rest was foam. Below is the recipe I used for this brew (Oktoberfest Ale, based off EdWort's Recipe):
Grain
6.6 lbs Munich LME
3.3 lbs Pilsner LME
0.5 lbs Caramunich III Malt
0.5 lbs Vienna Malt
Hops
1 oz Tettnang (60 min)
0.5 oz Hallertau (30 min)
0.5 oz Hallertau (15 min)
Yeast
1 Pkg White Labs WPL029 German Ale/Kolsch Yeast
Primary Fermentation: 22 Days 74F
Bottle Conditioned: 2 Months at 74F
Info
Measured Original Gravity: 1.072
Measured Final Gravity: 1.015
Actual Alcohol by Vol: 7.54%
Bitterness: 25.5 IBU
Est Color: 20.4 SRM
For this, I used 1/2 cup of priming sugar (3.5oz), which should give me 2.1 volumes CO2, well below the 3 volumes cap for 12 oz bottles. I'm almost 100% certain the fermentation was finished, I didn't over-carbonate, and the priming sugar was fully mixed. The only explanations left for the bombs are flaws or infection, but I'm still more concerned about the excessive foam in each.
Grain
6.6 lbs Munich LME
3.3 lbs Pilsner LME
0.5 lbs Caramunich III Malt
0.5 lbs Vienna Malt
Hops
1 oz Tettnang (60 min)
0.5 oz Hallertau (30 min)
0.5 oz Hallertau (15 min)
Yeast
1 Pkg White Labs WPL029 German Ale/Kolsch Yeast
Primary Fermentation: 22 Days 74F
Bottle Conditioned: 2 Months at 74F
Info
Measured Original Gravity: 1.072
Measured Final Gravity: 1.015
Actual Alcohol by Vol: 7.54%
Bitterness: 25.5 IBU
Est Color: 20.4 SRM
For this, I used 1/2 cup of priming sugar (3.5oz), which should give me 2.1 volumes CO2, well below the 3 volumes cap for 12 oz bottles. I'm almost 100% certain the fermentation was finished, I didn't over-carbonate, and the priming sugar was fully mixed. The only explanations left for the bombs are flaws or infection, but I'm still more concerned about the excessive foam in each.
