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Old 09-13-2012, 04:22 PM   #161
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Originally Posted by najel View Post
So when batch sparging, all the stuff you read about the grain bed being at least so many inches and no more than so many inches does not matter?
I'm asking because I have a 48 qt rectangular cooler that is very clean that I could use to build a lauter tun, but I am afraid that it will be too large since I am only planning on 5 gallon batches with OGs in the 40s to 50s.
You are correct...the traditional advice about grain bed depth does not relate to batch sparging. I've made 426 5 gal. batches in a 48 qt. cooler over the last 14+ years. If it didn't work I would have switched to something else a long time ago!
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Old 11-19-2012, 05:10 PM   #162
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Great chart! What's the max size for a no-sparge batch relative to these max batch sizes?

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Old 11-20-2012, 03:26 AM   #163
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i've also noticed that fly sparging with only a 5 gallon batch is hard because of what little water is coming in from the top of my tun. I guess i'll have to just batch when i do 5s and fly when i do 10s

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Old 11-21-2012, 12:43 PM   #164
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Default Too small for 10 gallon batches?

I've been attempting to 10 gallon batches in a 10 gallon igloo cooler. For an IPA that I'm about to do, it calls for 28 lbs or grain. If I calculate my strike water at 1.25 qt per pound, I come up with 8.75 Gallons needed. That doesn’t leave much room in the tank for the grain. I did a brown ale recently and ran into the same thing. I just filled my cooler with strike water as much as I could. I felt the batch tasted a bit thin. I also batch sparge. So, filling up the mash tun doesn’t leave any room for the mashout either. Anyone run into this problem and have a solution? Looking at the chart, I may have to invest in a bigger mash tun.

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Old 11-21-2012, 01:36 PM   #165
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I use a 5 gallon cooler and since life begins at 60 (1.060 that is!) I never have room for a traditional mashout. Instead I drain roughly 1.75 gallons of wort from the cooler and bring it to a boil then return it to the cooler. This raises the temp of everything to 168-170 depending upon the day and recipe. It absolutely loosens the grain bed. After 10 minutes I start draining and batch sparging.

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Old 11-21-2012, 04:06 PM   #166
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Quote:
Originally Posted by BrewmeisterSmith View Post
I've been attempting to 10 gallon batches in a 10 gallon igloo cooler. For an IPA that I'm about to do, it calls for 28 lbs or grain. If I calculate my strike water at 1.25 qt per pound, I come up with 8.75 Gallons needed. That doesn’t leave much room in the tank for the grain. I did a brown ale recently and ran into the same thing. I just filled my cooler with strike water as much as I could. I felt the batch tasted a bit thin. I also batch sparge. So, filling up the mash tun doesn’t leave any room for the mashout either. Anyone run into this problem and have a solution? Looking at the chart, I may have to invest in a bigger mash tun.
Short of a bigger tun (highly recommended), you can just skip the mashout. No big deal.
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Old 11-22-2012, 03:54 AM   #167
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i've never done a mashout, just sparge. I also strike with 1.75 qt/lb if that matters

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Old 11-30-2012, 07:17 PM   #168
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looking at the 36qt Coleman Extreme 5 and it lists interior dimensions at 19.75 in. x 7.75 in. x 10 in.

= 1,530.625 cubic inches
/231 ≈ 6.6 gallons ≈ 26.5 quarts

I majored in math, so arithmetic is not my strong suit, and anyone correct me if I'm wrong, but 26.5 quarts ≠ 36 quarts

where did the other 2½ gallons go?

which makes striking a perfectly reasonable 6.75 gallons in what SHOULD BE a 36 quart system a little difficult

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Old 12-01-2012, 05:25 PM   #169
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Probably the volume under the lid, which you can't use. My 48 qt. cooler really holds about 9.5 gal., not 12.

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Old 12-01-2012, 11:10 PM   #170
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I can get the 70 qt version for about the same price

12½ x 24½ x 10½ interior = 3215.625 in³ = 13.92 gal = 55.6 qt

that'll work just fine

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