Lack of airlock activity

[Mork]

I recently started a 5 gallon brew based on the River Cottage blackberry ale. Basically 2 cans of Cooper's Pale Malt Extract, Goldings Hops, 4Kg Blackberries, Some brewing sugar and Muntons Gold Premium Beer Yeast.

Did the boil with blackberries, hops etc. Made a starter culture with the yeast and left it overnight. Put an airlock on the main wort so that nothing nasty could get into it overnight.

Next day I aerated the worted then pitched the starter. OG was 1052. refitted airlock.

In the past, using different yeasts, within about 1 day of pitching the airlock was bubbling away merrily every few seconds. This time, however, there has been no airlock activity to my knowledge (unless it's so slow that it bubbles when I'm not watching).

I've looked inside the bin and there's a healthy foam/crust on the top and the right smell that says the wort is being brewed out. After 4 days the hydrometer was reading at 1020, so it's definitely fermenting away quite nicely and a sample taste told me that all was good.

So I was wondering if anyone else had similar experiences. Could it be a characteristic of the Muntons Yeast? Why is it that there's no airlock activity?

 

[Covrich]

I get it all the time. Could be just this brew or could be a slightly leak in teh seal on your vessel.. I know my vessel has seal issues from time to time..

Your brew is clearly going okay so no need to worry

Sounds very nice by the way!!

 

[Mork]

Thanks for the reply. All is still going well with the blackberry ale, although the recipe's recommendation regarding the quantity of hops was somewhat conservative I feel, having tasted the wort. Nothing I can really do about that, but I've decided to dry hop, as the ale is almost ready for bottling and should be ready by the weekend to bottle. Hopefully I'll get more hop aroma to add a bit more depth. The ale has a very distinct red/purple colour, more to the red side and the blackberry flavour is there with a slight acidity from the fruit. I think it's going to be quite nice when it's finished and matured.