Old yeast

Help Support The HomeBrew Forum:

Steveo666

New Member
Joined
Mar 16, 2020
Messages
5
Reaction score
0
Hi

Does anyone have any old yeast? expired sell by or use by dates are fine.

Happy to make use of any old packets. (not for brewing)

Or perhaps you might know where I can go and collect some?
 

An Ankoù

Landlord.
Joined
Feb 2, 2019
Messages
2,575
Reaction score
1,328
Location
Brittany, France
If you told us what you intended, we might be able to offer some suggestions. For example, if you knocked up a beer kit using a single sachet of yeast, you'd end up with hundreds of times the original yeast and a batch of beer to drink.
Welcome to the forum by the way.
 

Steveo666

New Member
Joined
Mar 16, 2020
Messages
5
Reaction score
0
Hello, thanks for the welcome!

It might sound like an odd request but....

I was hoping to get some old packets....to use them up and save them being thrown away into landfill. (I don't like wasting things)

It's for a science project I'm experimenting with trying to generate Co2.
I know I can harvest yeast from brewing (Which I do already) but I specifically wanted to try dried packet yeast.
 

samale

Landlord.
Joined
Mar 6, 2019
Messages
764
Reaction score
270
I know students are meant to be skint but that's one strange request considering the price of dry yeast.
Saying that I have 5 packets your welcome to. IMG_20200316_225123697.jpg
 

Drunkula

Landlord.
Joined
Nov 30, 2017
Messages
1,663
Reaction score
1,124
It's for a science project I'm experimenting with trying to generate Co2.
Bread yeast generate tons of co2. I've force carbonated a keg using a "co2 engine" which is a 2 litre pop bottle with sugar, yeast and nutrient in it and it forced carbonated it faster than having a co2 regulator sat at 15 psi.

100 grams a quid from the supermarket.

What yeasts are they @samale? All pale? Did you not get on with it? I had a packet as part of a batch I bought and the pale was dead but the kolsh and real ale worked fine.
 

GerritT

Landlord.
Supporting Member
Joined
Jul 27, 2017
Messages
2,451
Reaction score
808
Sorry, I use my old yeast as nutrient: just pop some in the boil for 15 minutes.
 

Steveo666

New Member
Joined
Mar 16, 2020
Messages
5
Reaction score
0
What I'm trying to do is use old yeast to generate Co2. Basically to use for purging purposes.
I'm essentially making a starter in a conical flask and using my old lab equipment to collect the Co2 and then store it under pressure for purging bottles and FV during bottling.
Any old packets that would otherwise be thrown away more than welcome.
 

johncrobinson

Landlord.
Joined
Sep 13, 2019
Messages
866
Reaction score
251
If a few quid isint a problem,Yeast based generators can be bought,They are sold for use with planted aquariums
 

Steveo666

New Member
Joined
Mar 16, 2020
Messages
5
Reaction score
0
Interesting JCR, I haven't seen those before.
I have seen the 'Co2 engine' and its quite close to what I am playing around with.
However, I'm trying to use up something rather than letting it go to waste.
Hence the 'old or out of date' dried yeast. I'm also interested in how active old yeast can be.
 

Latest posts

Group Builder
Top