Use by dates.

Get advice on making beer from raw ingredients (malt, hops, water and yeast)
Post Reply
Midlife
Piss Artist
Posts: 127
Joined: Wed Jul 02, 2014 9:30 pm
Location: Essex

Use by dates.

Post by Midlife » Wed May 01, 2019 9:41 am

I got a recent batch of water treatment and protofloc from a supplier with very short best before dates, I would usually get over a year or so, these are June and August 19, and even with 200g/250ml I wouldnt get trough allot to be honest.

Technically they are within the dates so no point in mentioning to the supplier... so my question is for treatment/protofloc how long would you use after the “best before end date”?

Cheers.
Last edited by Midlife on Wed May 01, 2019 7:19 pm, edited 1 time in total.

User avatar
Kev888
So far gone I'm on the way back again!
Posts: 7584
Joined: Fri Mar 19, 2010 6:22 pm
Location: Derbyshire, UK

Re: Use by dates.

Post by Kev888 » Wed May 01, 2019 10:02 am

Protofloc is fine for years and years if kept properly dry, I must have had some of mine for around a decade with no noticeable change in performance.

'Water treatment' can be all sorts of different things, so we would need more info on that one. Generally though, I can't immediately think of anything that goes off easily/quickly, though calcium chloride can gain weight by absorbing moisture unless you purposely make up a solution to begin with.
Kev

Robwalkeragain
Hollow Legs
Posts: 361
Joined: Tue Jun 05, 2018 9:19 am

Re: Use by dates.

Post by Robwalkeragain » Wed May 01, 2019 3:16 pm

Long as you like. Don’t worry about it for anything but sanitizer.

guypettigrew
Under the Table
Posts: 1606
Joined: Mon Mar 22, 2010 7:10 pm
Location: Christchurch, Dorset

Re: Use by dates.

Post by guypettigrew » Wed May 01, 2019 3:21 pm

Robwalkeragain wrote:
Wed May 01, 2019 3:16 pm
Long as you like. Don’t worry about it for anything but sanitizer.
What happens with the sanitizer to make it go off?

Guy

Robwalkeragain
Hollow Legs
Posts: 361
Joined: Tue Jun 05, 2018 9:19 am

Re: Use by dates.

Post by Robwalkeragain » Thu May 02, 2019 10:43 am

Chemicals just become less effective and can’t be guaranteed fit for purpose, likely it’s fine but without something to measure it (like PAA strips for perecetic acid) it’s guesswork, losing a batch for a sanitizer would be a shame! Everything else you can risk imo.

Post Reply