Wow my cider is still fermenting

[jflongo]

Hard Apple Cider 5 1/2 Gallons - 5 1/2 Gallons Apple Juice, 4 lbs Brown Sugar, Liquid Cider Yeast, Gravity 1079 02/20/2013

I checked this after a week, airlock was still going off a ton, checked it again a few days later, still going ever 2 seconds, checked it after 1 1/2 weeks, still every 3 - 4 seconds. I just came home from a 4 day trip, just checked it, so it's been going 15 days, and I still see activity every 6 seconds about

 

[CRock303]

Not a problem, cider can take 3-4 weeks to ferment dry especially with the higher gravity you are doing. What temp are you fermenting at and what yeast are you using?

 

[KeystoneHomebrew]

Far from out of the ordinary. But make sure you're checking the hydrometer reading too. If you had a very vigorous fermentation, you're going to notice your airlock going a little crazy, when all you're actually seeing is trapped CO2 coming out of solution.

 

[jflongo]

Generally I take a hydrometer reading, when I see the airlock only going off every 1 or 2 minutes. Not every 4 - 6 seconds. I'm going to let this go longer.

I'm fermenting around 68 degrees, and used a Wyeast Liquid Cider Yeast. I'm not worried, just was surprised when I came back from my 4 day trip, and it's still going off like this