airdusters

Recipes 

I have been using the tastybrew.com calculator but I don't think it takes into consideration that I won't be boiling the LME with the hops.

The hops are only going to be boiled with the steepings of a 1/2 lb of Carapils since I am adding the 7 lb of LME post-boil. How much hops would I need to use and for how long would I have to boil them in order to get an IBU of 30?

The hops are 6.2% AA Hallertauer, by the way, and it's going to be a 2 gallon boil for a 5 gallon batch.

Suthrncomfrt1884

Recipes 

What you're boiling doesn't matter. The hops will isomerize the same way. I'm sure the calculator gave you the right amounts.

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He who drinks beer sleeps well. He who sleeps well cannot sin. He who does not sin goes to heaven.

Another HERMS rig...

Yooper

Recipes 

I'd use 2.5 ounces of hallertauer- that should get you close to 30 IBUs. I'd do a typical 60 minute boil.

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Broken Leg Brewery
Giving beer a leg to stand on since 2006

airdusters

Recipes 

Thanks for the replies. My extract beers always finish rather sweet as it is so I'm trying to avoid caramelization by skipping even a late extract addition.

Suthrncomfrt1884

Recipes 

It's still going to turn out sweet. Extract beers always finish a little higher than they should, so it's hard to get rid of the sweetness, regardless of boil times. I suggest adding some highly fermentable sugars like honey or corn sugar in order to dry your beer out a little more.

__________________
He who drinks beer sleeps well. He who sleeps well cannot sin. He who does not sin goes to heaven.

Another HERMS rig...

Yooper

Recipes 

Not always. I've made some wonderful extract beers- especially with adding the extract late at flame out. I think it can be fine, unless someone is making a beer that should finish very very dry, like a saison or something like that.

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Broken Leg Brewery
Giving beer a leg to stand on since 2006