Dave__C

Recipes 

I'm thinking about going all grain. What made you switch and are you happy you did?

Firstnten

Recipes 

AHS directions are for a partial boil. (that is when seeping gains are in the recipe)

Beermore.com directions are for a full boil.

Beermore suggest putting the seeping grains in 5 gallons and heating the water untill it gets to 170F. Then take them out.

Seems everyone here has a way they like doing it. The funny thing is I suspect everyone is happy with their product.

I just did the AHS Maibock and started out following their directions, when I realized it was a partial I added more water and save a gallon to pour over the gains when done seeping. I have a thread ion the forum discussing the results.

nopride

Recipes 

I'm doing my first full boil this weekend. I have an extract kit for a belgian ale. The bittering hops is 1 oz of Northern Brewer for 60 mins. The instructions are for a partial boil. Do I need to use less hops because of the increased efficiency? Or should I not worry about it and just throw it all in?

McGarnigle

Recipes 

nopride,

I'd probably use about 80% of the hops. Someone can give you a less half-assed estimation, but given that it's a Belgian ale, you probably wouldn't want too much bitterness.

impulserush

Recipes 

I calculated my last recipe, an IPA. and I used partial boil and full boil volumes and the IBUs came out from 85 partial, and 82 with a full. I thought there would be a bigger change. Or will the taste be more bitter.

I really want to know so i do not make overly bitter beers from partial boil recipes.

If I add less(hops) in the beginning can I add the rest later in the boil for the flavors?

Help please!

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SumnerH

Recipes 

Gravity doesn't affect hops utilization. This is something that brew software (and IBU algorithms) often get wrong. (for unrelated reasons, a recipe with a certain (full volume) OG will tend to have lower utilization than one with a lower (full volume) OG, though that is not strictly true nor directly attributable to gravity; the reasons for it mean that it really shouldn't matter (or not much) how concentrated a boil you did).

Other factors may make the overall utilization slightly less (ie less bitter) in the partial boil than in the full boil, but as far as I know whether that's true and to what extent is still a somewhat open question (cue a hundred people chiming in saying it's absolutely one way or the other). Some places recommend maybe 10% less hops in a partial boil, other places (e.g. the kits from Northern Brewer) recommend the same hops schedule for full and partial recipes.

The best bet is to use the same hopping schedule in your partial boil that you would use in the full boil, until you get a few brews under your belt and start deciding if there is a noticeable difference or not.

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