Recipe with low sparge volume, + reduced capacity?

[huskeypm]

Dear all,
I found a wonderful recipe (http://menuinprogress.com/2009/07/rye-ipa-partial-mash-recipe.html) for an IPA that I made a few months back. I wanted to make this batch again, but I noticed that the mash/sparging volumes seemed quite low (~8 qts/10 lbs grain / 5 qts/10lbs) compared to 'How to Brew' guidelines (recommends 1.5 qts and 2.25 qts per pound grain, respectively).

So the question is, any guesses as to what kind of efficiency I would get with such small volumes of water? Is it worth using the HTB recommended guidelines and trying to adjust the hops to get the right IBUs?

Lastly, I planned to do the partial mash recipe, but noticed I'm a bit too short on LME, so I planned to use some spare grain (3lbs). However, I don't have the capacity for boiling the collected wort. Is it ok to collect half of the wort in a bucket, then boil down the other half until I can handle the entire volume?

Thanks!
pete

 

[chickypad]

That recipe has 6 lbs of grain and they are recommending to mash with 8.25 qts - that looks correct.

Lots of folks do split boils. Can you find or borrow another pot - it just needs to be big enough to hold the difference. Then just split your hops accordingly between the two based on the volume in each pot.

 

[huskeypm]

My apologies, I counted the DME in my grainbill. No wonder it didn't make sense.

I'll try the split boil. I don't have another big kettle, so I'll just toss part of it in a fermenter while I boil in the other vessel. Of course I won't add the hops until I get close to the correct volume overall
thanks!
pete

 

[chickypad]

That sounds like it will work if you wait and start the countdown on the boil after you've got all your runnings added in. I thought you were planning to add the extra wort towards the end of your boil time, so I was worried about you not driving off enough DMS.