I've had what I hope to be a great IPA in the fermenter for almost two weeks. The airlock water was almost level and activity stopped for about a day. I took a G reading and resealed the bucket. Later that day it started to bubble up again and is still going today as strong as a couple days ago! OG was 1.060 and yesterday was 1.020. Is this normal for this much activity after such a lull?
Could be just CO2 coming out of solution, or @ 1.020 you may not be done yet. Not sure what your FG should be... Just wait a bit longer, maybe another week, check the FG again and see if it is the same.. If so bottle. and drink in a few weeks :-)
The same thing happened to me. I have a wheat beer that has been in the primary for 17 days. I moved the beer to take a gravity reading. The reading was 1.020 also. And after about a few hours, the beer is bubbling away and there is a solid layer of krausen. And the beer was delicious tasting by the way!!! I am going to hold out for at least another week until I bottle. Funny how this is striking similar.
Those little yeasties have awaken from their sleep alright!! I will never bottle again without taking a gravity reading. I am bad about watching the airlock and deciding on when to bottle. Never again.
I did move it a bit. Good advice all around as it is two days alter and still churning away! Here is the recipe a local Do it Yourself store and I came up with:
6lb. Light Dried Malt
1 lb. Sparkling Amber Malt
3/4 lb Crystal Malt 120
1/2 lb. Carapils Malt 20 L
2 oz. Northern Brewer (Bittering)
1 oz. Kent Goldings (Flavoring)
1 oz. Kent Goldings (Finishing) + 1/2 oz Northern Brewer
Wyeast 1272XL Thames Valley Ale