Originally Posted by nelsongg
If I'm only bottling a gallon (maybe two), how much yeast do I use?
You don't need much, even for 5 gallons... the real question is, though, what are you going to do with the rest of the yeast if not this?
More yeast won't hurt anything. They won't reproduce all that much fermenting the priming sugar, you'll probably get a little more sediment than you normally would, but it won't ruin anything.
If you're nervous about it, you can easily use probably a quarter of a packet without any risk, but I've not done it myself. I'd use the whole packet just to be certain, but I don't mind sediment.