Wha Wha Wha?

[Petho]

I put up a batch of Centennial Blonde all grain today and used Danstar Nottingham Dry Yeast for the first time, I usually use WLP.
There is Airlock Activity after 1 hour in the fermenter, is this normal with Dry Yeast? WLP can take up to 30 hours to bubble.
Will I need a blow off tube for such a low gravity recipie?

 

[mabaty]

In a lot of cases, I've noticed dry yeast starting activity much faster.

 

[RJSkypala]

If its in a bucket you should be fine with no blowoff.

The only thing that has started faster than dry yeast for me is brewery slurry.

 

[Golddiggie]

I've never used White Labs yeast, but every time I pitch in Wyeast I see active fermentation sign in under 18 hours. Less than 12 if I make a starter (becoming the norm for me), and sometimes even as little as under 2 hours (post lag indications) with a foam sculpture in the airlock in under 6 hours. YMMV

IF I'm unsure of how much room the brew will need, or I've not used fermcap in the brew, then I tend to have a blow-off tube either standing by, or installed for the first few days. After that, it's usually calmed down enough that I don't need it...