How long can a beer be kept in secondary before carb. problems arise?

[mew]

I brewed a simple extract bitter, but then I put some honey in the secondary. Before I added the honey it had stopped fermenting, but now, two months after adding the honey, it is still slowly fermenting. If I let it go until completion (which may take another couple of months) will the yeast be able to carbonate the beer like normal? I'm also afraid of off-flavors from letting it sit for so long. What should I do?

 

[Genghis77]

The only carbonation problem in a secondary would be loss of pressure from fermentation and higher liklihood of contamination. But you should be safe for about 3 weeks. Bottle it once the activity dies.