Author Topic: Specific gravity issue...Dump or Keep?  (Read 2771 times)

Offline tomsawyer

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Re: Specific gravity issue...Dump or Keep?
« Reply #15 on: March 25, 2012, 05:05:42 PM »
FYI, grain soaks up 1 pint of water per pound that you don't get back.  So when you mash with 1qt/lb, you only get half the water back since 1pt remains stuck to the grain.  That means you would only recover 50% of the sugar and thas best case scenario.  If you had at least added that galln of water to the drained mash you would have improved your sugar recovery. 

Do you have a pot that holds 8gal?  You'll need one to do 5gal batches of AG.
Lennie
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Offline tubercle

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Re: Specific gravity issue...Dump or Keep?
« Reply #16 on: March 25, 2012, 05:09:12 PM »
It seems from all the feed back the recipe itself was not all to good.

The recipe is fine. It the method of wort extraction that need to be tweaked.
Sweet Caroline where the Sun rises over the deep blue sea and sets somewhere beyond Tennessee

Offline evandy

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Re: Specific gravity issue...Dump or Keep?
« Reply #17 on: March 25, 2012, 07:27:04 PM »
It seems from all the feed back the recipe itself was not all to good.

The recipe is fine. It the method of wort extraction that need to be tweaked.

Yes.  And, despite what someone else said, 45 minutes should be plenty for a mash with modern grains.

1) Were the grains just "cracked" or actually milled?  If you remember what they looked like, was there a lot of dust and little pieces of grain, or did you have mostly whole kernels that were completely intact without much little stuff?  Ideally, you should have hulls that are mostly intact, and the hard pieces of grain should be in 3-5 little pieces with a decent amount of "flour."

2) Based on what you said, there should still have been a LOT of sugar left in your grains.  You say you only boiled 3 gallons of wort; is this because of the size of you pot?  If so, can you fit 2 pots on your stove and start off with ~ 6 gallons of wort?  If so, then you should do:
  - Mash like you just did.  If possible, add about 3.5 gal of water to your grain to start.
  - Drain off the water, split between the 2 pots
  - add 3 more gallons, mix well, and drain off (you should get the whole 3 gallons back this time)
  - Now, mix both pots well, and check your gravity (this is pre-boil)  You should be doing much better.

This process is called batch sparging (you drain 100% of the water off the grains multiple times).  If you can't fit the 3.5 gallons of water in your lauter tun, then you can use the same process, but mix and drain off more than 2 times.  Just split each collection between your two pots.

If you can NOT boil 2 pots (or don't have them), then you will need to collect a lot of much stronger wort (so that you can dilute it after the boil).  Either start off with a lot more grain, or add some malt extract to make up your pre-boil gravity.  Let us know more about your situation and we can help more.

Offline repo

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Re: Specific gravity issue...Dump or Keep?
« Reply #18 on: March 28, 2012, 06:48:38 PM »
 
It seems from all the feed back the recipe itself was not all to good.

The recipe is fine. It the method of wort extraction that need to be tweaked.

Yes.  And, despite what someone else said, 45 minutes should be plenty for a mash with modern grains.
 
   
 

This is not good advice. This will show you and explain why.
http://braukaiser.com/blog/blog/2011/03/04/conversion-progress-in-a-single-infusion-mash/

Offline bo

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Re: Specific gravity issue...Dump or Keep?
« Reply #19 on: March 28, 2012, 06:58:13 PM »
I would never mash for less than an hour and I usually go more.

Start the mash, watch a movie, play with the kids, play with the wife.  What's the hurry?

Offline tygo

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Re: Specific gravity issue...Dump or Keep?
« Reply #20 on: March 28, 2012, 07:09:29 PM »
I would never mash for less than an hour and I usually go more.
 play with the wife.  What's the hurry?[/size]

See now, that's an efficient use of time  8)

Seriously though, I agree, while I'm sure that full conversion can be obtained in 45 minutes (or less) under the right conditions, in a homebrew process why push it?  Give it the 60 minutes or so to make sure it's done.
Clint
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On Tap: Lucifer's Hammer Golden Strong Ale, Dopplebock, Old Fuzzynut's Ale

Offline pcarlin

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Re: Specific gravity issue...Dump or Keep?
« Reply #21 on: March 31, 2012, 03:40:30 PM »
Wow! Lots to take in! Since I posted this I have done a lot more research and invested in a 10 gal. Mash tun. Like I said before I am pretty sure it was simple lack of knowledge and eagerness to jump in a tad unprepared. Thanks for the info and now that I am loaded with a little know how I am gonna give it a shot again next weekend. Wish me luck!