How long does extract last? - Home Brew Forums
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Old 11-25-2006, 07:36 PM   #1
Mk010101
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How long do packages of malt extract last? A friend has a kit from williams that he hasn't used and while the yeast is probably gone, I was wondering if the extract would still be ok to use. He said it could be about a year old.

 
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Old 11-25-2006, 07:49 PM   #2
RichBrewer
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I would say it is still good if it was stored in a cool place.
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Old 11-27-2006, 11:40 AM   #3
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I think you would know when you opened it if it was bad or not
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Old 11-27-2006, 03:33 PM   #4
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I've never used anything more than 6 years old, so hard to tell. LME darkens slowly as it ages, but it is packed sterile. In a one year old kit, the only thing I would worry about is the yeast and making a starter would resolve that concern.
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Old 11-27-2006, 08:29 PM   #5
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An old fart in my hometown gave me a 3.5kg can of "Geordie's american light" extract this spring. As a lark, I brewed up a batch using it, adding some hops and some extra grain .

As I opened the heated can, the pressure from within was so great that the lid popped up, hitting my knuckles really hard. This extract was really dark.

Smelled ok as I brewed, fermented really well, cleared out beautifully in the bottle.

Tastes HORRIBLE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

I think this stuff was probably 20 years old, or so. I learned my lesson not to waste my time and other ingredients.
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Old 11-27-2006, 11:06 PM   #6
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Any can that is pressurized (and shouldn't be) is probably infected with something nasty, like anaerobic bacteria.
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Old 11-27-2006, 11:22 PM   #7
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It depends on the type of extract. If it's a year old, DME or LME that's packed in the original sealed can (i.e. muntons 3.3 lb cans or such) are fine. If it's bulk LME (i.e. the kit packed the LME from a bulk container into a milk jug or other non original container), toss it.

 
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Old 11-28-2006, 12:25 AM   #8
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If it's in a vacuum bag from Williams, it's probably still good. I used a couple that were 7 years old to make some mini mashes and they turned out good.

 
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Old 11-28-2006, 10:55 AM   #9
drinker
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I brewed with two 3.3 lb munton cans on 11-4-06 and the LME seems, so far, to be just fine.

The syrup was slightly darker though.

 
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