2 x poor carbonation, same yeast

[Martybhoy]

About 8 weeks ago I bottled a Belgian blonde ale (using WLP530) carbed it to 2.8 volumes of CO2 with white sugar. Even after 8 weeks in the bottle, it is very poorly carbed.

I saved the yeast slurry and brewed a Belgian dubbel. This one is only 3 weeks in the bottle, and though I planned to lay them down for at least 6 months, my fear got the better of me last night and I opened a bottle, just to test the carbonation, and it is very low again. There is enough yeast at the bottom of the bottles to carb them, so I am wondering if the low carbonation has anything to do with the yeast strain itself, as I have never had this problem before .

OGs were mid 60's for the blonde and 1.072 for the dubbel, and FGs were under 1.010 for both.

Anyone have any suggestions?

 

[chewie]

Have the bottles been stored at around a constant 20c ?

Bottles stored on a floor will be cooler than ones up high, temp at night can still fluctuate quite a bit to.

 

[LarryF]

Over the winter I was leaving my just bottled crate by the rad because my bottles weren't carbing. The temps over the next few days should help.

 

[Martybhoy]

They're stored under the stairs right in the middle of the house so I reckon 20°+.

 

[KVSV]

checking my notes, I brewed Orval clone with WLP530 and Rochefort clone with WLP540. Rochefort stopped at some point so I had to save it by doing a yeast starter from Orval clone slurry (just WLP530, before adding brett). I can say that there is nothing wrong with WLP530 yeast and Rochefort clone carbonated absolutely fine in bottles. It does take a bit longer for strong beers though. For Rochefort my OG was 1.076 and finished 1.016

 

[KVSV]

ah, I also I keep it in a room for a few weeks before transferring to my fermentation/conditioning fridge at 12C

 

[Martybhoy]

Cheers KVSV, I'll persevere with the dubbel, but the blonde is now 9 weeks in the bottle and still almost no carbonation. I think, for whatever reason, I've mucked up the priming somewhere along the line.