AMS - 6 month 'use by date'

(That's water to the rest of us!) Beer is about 95% water, so if you want to discuss water treatment, filtering etc this is the place to do it!
Post Reply
User avatar
Falling off the Barstool
Posts: 3940
Joined: Mon Feb 16, 2009 10:37 pm
Location: Irish man living in Brighton

AMS - 6 month 'use by date'

Post by floydmeddler » Thu Jul 12, 2018 9:38 am

Hey folks,

Bought some AMS from The Maltmiller. I accidentally bought 2x500ml bottles instead of 1. I thought, no big deal. It'll all get used eventually. Then I noticed that it needs to be used within 6 months. Anyone else surprised by this? Didn't think an acid blend would go out of date.

Thoughts please!


Steady Drinker
Posts: 37
Joined: Tue Jun 05, 2018 9:19 am

Re: AMS - 6 month 'use by date'

Post by Robwalkeragain » Thu Jul 12, 2018 10:45 am

Can't speak for AMS specifically but it's generally the half life of the chemicals included, if you're using a pH meter just add enough to account for any changes

User avatar
Even further under the Table
Posts: 2008
Joined: Fri Mar 13, 2009 1:18 am
Location: Sunderland.

Re: AMS - 6 month 'use by date'

Post by Eric » Thu Jul 12, 2018 2:15 pm

AMS will last years provided it is sealed and kept in a cool safe place, it's a mix of sulphuric and hydrochloric acids.
Without patience, life becomes difficult and the sooner it's finished, the better.

User avatar
simple one
CBA Prizewinner 2010
Posts: 1929
Joined: Tue Oct 28, 2008 11:35 am
Location: Wivenhoe

Re: AMS - 6 month 'use by date'

Post by simple one » Thu Jul 12, 2018 10:06 pm

Alkalinity test before.

Use acid that was bought years ago and has sat in the shed.

Alkalinity test after.

Double thumbs up, brew on.
Hard to find the time.... But getting the occasional one in now and again.

Post Reply