Bottle bombs in the making?

I brewed a Left Hand Milk Stout clone with an OG of 1.072 and after 4 weeks in the primary it was at 1.030 with a target of 1.016. Seems like it was definitely a stuck fermentation.

I went ahead and primed and bottled it. Are they going to explode or am I okay?

 

Was the target 1.016 even after the lactose?

 

That's a good question. Maybe not. It's a recipe that I got off of this forum somewhere. I had a LHMS here that I sampled side by side with what was going into the bottle and it was a very close match. Is lactose not fully ferementable?

 

Lactose is NOT fermentable, at all.

 

How much lactose did you add? If it is about 35-40 points per pound per gallon, each pound you added would probably raise FG by about 7-8 points (for a 5 gallon batch). If you added 2 lbs, that would raise FG by 14-16 points, explaining the difference between expected FG and measured FG.