extract -> all grain

[rhino777]

1. So for converting a recipe from extract to all grain, can I just keep adding 2 row until the gravity is the same? For light malt extract that is.

2. How the heck do you convert for dark malt extract?

[DannyW]

1. So for converting a recipe from extract to all grain, can I just keep adding 2 row until the gravity is the same? For light malt extract that is.

Pretty much. If you were doing a concentrated boil with extract you will have to adjust your hopping rate.

2. How the heck do you convert for dark malt extract?

Check the manufacturer's website and see if they will give you a breakdown of what grains they use to make darker extracts. I've never looked; I don't know if it is open information or a closely held secret. Short of that you'll have to take your best guess, then adjust on subsequent batches. "Designing Great Beers" and "Brewing Classic Styles" should get you close enough to start.