Thanks guys for all the responses. I think I am going to go with 1/2 the batch with 1 carb drop and the other half with 2, work out what I like ans stick with it.
Also, my stout ferment stoppped bubbling after 2 days. Is this normal, or do I have dead yeast? It's be sitting constantly at about 22c, so I dont know why it would have stopped?
Cheers,
Budron
Airlock activity is not a true indication of how fermentation is going as the fermenter may not be sealing too well so, after a couple of days of vigorous bubbling the gas could be escaping elsewhere and give the impression that fermentation has stopped.
Hydrometer hydrometer hydrometer
If you are using home brew style 750ml PET bottles then do yourself a favour: for a third of the cost of two priming lollies, just drop one supermarket sugar cube into each bottle for an identical effect.