Author Topic: Yeast starter using LME  (Read 553 times)

Offline HopDen

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Yeast starter using LME
« on: February 13, 2020, 11:50:54 PM »
I assume if I take 1lb of LME as opposed to DME added to 1 gallon of water to achieve a gravity of 1.35. Can I use that to make a yeast starter? A 1 pound bag of DME is approximately $4 at my LHBS and $4 for the LME online. I have always used DME for whatever reason.

Thoughts

Also, would I have to boil it prior to pitching? Making another assumption but me thinks it was packaged sterile.
« Last Edit: February 13, 2020, 11:53:34 PM by HopDen »

Offline Richard

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Re: Yeast starter using LME
« Reply #1 on: February 14, 2020, 02:57:09 AM »
LME should be packaged sterile or it would go bad with no refrigeration. You can certainly use it to make starter wort at 1.035 (not 1.35) if you put a pound in a gallon. The reason I use DME instead of LME is that with LME you need to use the whole package once opened (or try to store it refrigerated) and I never make a gallon of starter wort at a time. DME can be purchased in large bags and used little-by-little without any storage issues. It is more expensive because it takes energy to dry the LME into DME and that costs the manufacturer.
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Offline KellerBrauer

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Re: Yeast starter using LME
« Reply #2 on: February 14, 2020, 01:37:42 PM »
I have always used DME for my starters.  But like Richard said, it can go bad after opening the bag.  So, I transfer my unused DME to a Food Saver bag and vacuum seal it for future use.  Works great!  A 2 pound bag lasts for many-many brews (6-8 months).  Never had to discard any because it turned bad.
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Offline denny

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Re: Yeast starter using LME
« Reply #3 on: February 14, 2020, 03:36:34 PM »
I have always used DME for my starters.  But like Richard said, it can go bad after opening the bag.  So, I transfer my unused DME to a Food Saver bag and vacuum seal it for future use.  Works great!  A 2 pound bag lasts for many-many brews (6-8 months).  Never had to discard any because it turned bad.

I think the point is that DME doesn't go bad.
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Offline goose

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Re: Yeast starter using LME
« Reply #4 on: February 14, 2020, 05:56:03 PM »
I have always used DME for my starters.  But like Richard said, it can go bad after opening the bag.  So, I transfer my unused DME to a Food Saver bag and vacuum seal it for future use.  Works great!  A 2 pound bag lasts for many-many brews (6-8 months).  Never had to discard any because it turned

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Offline HopDen

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Re: Yeast starter using LME
« Reply #5 on: February 14, 2020, 11:02:52 PM »
So in my opinion, DME is a mess to use. You have to boil, then cool. My assumption was, in a convoluted way, was to just boil my distilled water add the LME, let it cool to pitching temp w/o an ice bath. Oxygenate, add yeast and let it rip. IDK, seems less messy and easier too.

Offline Slowbrew

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Re: Yeast starter using LME
« Reply #6 on: February 15, 2020, 12:23:23 PM »
You can use LME if you wish too.  It will work fine.

The main obstacle, in my mind, is storage.  DME will last a very long time without any degradation but the clock starts on LME the moment you open the container.

Both methods require boiling/cooling down water so I don't see any savings there.  There isn't any need to ice bath starter wort either.  Just cover the pan and let it cool if you want.  I use cold water and ice to save myself time.

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Offline KellerBrauer

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Re: Yeast starter using LME
« Reply #7 on: February 15, 2020, 12:58:11 PM »
I have always used DME for my starters.  But like Richard said, it can go bad after opening the bag.  So, I transfer my unused DME to a Food Saver bag and vacuum seal it for future use.  Works great!  A 2 pound bag lasts for many-many brews (6-8 months).  Never had to discard any because it turned bad.

I think the point is that DME doesn't go bad.

My misunderstanding.  Thank you!
Joliet, IL

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Offline HopDen

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Re: Yeast starter using LME
« Reply #8 on: February 15, 2020, 01:07:38 PM »
https://www.homebrewing.org/Pale-LME-Liquid-Malt-Extract-Syrup--1-lb_p_7976.html

This is what I want to use. 1lb pkg will make 1 gallon of starter @ 1.035 I brew anywhere from 15-25 gallons at a time. Depending on recipe size and style, 1 gallon is perfect size.

TXFlyGuy

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Re: Yeast starter using LME
« Reply #9 on: February 18, 2020, 12:03:28 PM »
Just save some leftover wort from your mash tun from a previous brew. We always steal a couple quarts from the end of the mash. No...it might not be Kosher, but it has always worked for a great starter. How long have we done this? Probably over 10 years. With extremely good results.

Offline hopfenundmalz

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Re: Yeast starter using LME
« Reply #10 on: February 18, 2020, 03:19:22 PM »
A guy in our club rescued some past date Light LME from the trash at a LHBS. When opened, it looked like molasses, very stale. I used it for starters, no problem, but I decanted. Some guys did make beer with it, and the beers tasted stale.

I also will take last runnings for starters, if they are roughly 7 P or more. A little boiling can raise that to 8-9 P. You can also freeze the runnings if your not growing yeast up soon.
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Offline HopDen

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Re: Yeast starter using LME
« Reply #11 on: February 18, 2020, 10:18:26 PM »
Just save some leftover wort from your mash tun from a previous brew. We always steal a couple quarts from the end of the mash. No...it might not be Kosher, but it has always worked for a great starter. How long have we done this? Probably over 10 years. With extremely good results.

So I would assume that you would have to process in a pressure canner to avoid any potential infection?

Offline denny

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Re: Yeast starter using LME
« Reply #12 on: February 18, 2020, 10:28:44 PM »
Just save some leftover wort from your mash tun from a previous brew. We always steal a couple quarts from the end of the mash. No...it might not be Kosher, but it has always worked for a great starter. How long have we done this? Probably over 10 years. With extremely good results.

So I would assume that you would have to process in a pressure canner to avoid any potential infection?

Yeah, or freeze and boil when needed
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TXFlyGuy

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Re: Yeast starter using LME
« Reply #13 on: February 18, 2020, 11:23:54 PM »
Just save some leftover wort from your mash tun from a previous brew. We always steal a couple quarts from the end of the mash. No...it might not be Kosher, but it has always worked for a great starter. How long have we done this? Probably over 10 years. With extremely good results.

So I would assume that you would have to process in a pressure canner to avoid any potential infection?

Yeah, or freeze and boil when needed

The hot unhopped wort is saved in sterilized quart jars, sealed, and then stored in the fridge. Then boiled when needed to make a new starter. It works very well.

Offline denny

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Re: Yeast starter using LME
« Reply #14 on: February 19, 2020, 04:18:00 PM »
Just save some leftover wort from your mash tun from a previous brew. We always steal a couple quarts from the end of the mash. No...it might not be Kosher, but it has always worked for a great starter. How long have we done this? Probably over 10 years. With extremely good results.

So I would assume that you would have to process in a pressure canner to avoid any potential infection?

Yeah, or freeze and boil when needed

The hot unhopped wort is saved in sterilized quart jars, sealed, and then stored in the fridge. Then boiled when needed to make a new starter. It works very well.

With that method, there is always a risk of botulism.  So far, so good works until it doesn't
Life begins at 60.....1.060, that is!

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