When do I add Lactose?

I have a chocolate stout fermenting at the moment. I read online that lactose should be added later on in the process. Either secondary or bottling bucket. Obviously I didnt add it to the boil because I didn't know I should have done that. How should I do this?? add it to the bottling bucket? or should I add it to primary in a week or so... I do know it has to be sterilized but is there a best way to do it? Maybe boil the lactose in a certain amount of water? then add it?

I always add it with 10-15 mins. left in the boil. In your case, I'd boil some water, add it and cool before adding to your beer. Kinda like adding priming sugar.

Thats what I thought. I only did it this way because I was on another site reading when I should have got the info from here ...

rhoobarb said:

i always add it with 10-15 mins. Left in the boil. In your case, i'd boil some water, add it and cool before adding to your beer. Kinda like adding priming sugar.

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