growing us 05 from packet.

[robsan77]

Instead of buying 4 packs, I want to grow 1 pack to be pitched into 4 20 l fvs. I'm unsure about this though as I don't want to ruin the yeast.
Any suggestions?

 

[wilsoa1111]

if set on this easiest way would prob be to make 4 individual starters ie split 4 ways- if u had to, i read somewhere a 1 litre starter gives a 50% increase in yeast, so maybe looking at 4x 2l minimum??? not totally sure but should work ok, might still be underpitching

i was looking at doing this but tbh easiest thing is to use 4 packets

or

do one brew and split the slurry 3-4 ways then job done...

im looking at splitting a generic amber brewday so i can grow up a belgian strain (for saving and doing a big beer) while growing up some s-05 in the other- might just do a double brewday, see how the mood takes me

 

[Mark1964]

it will grow in a demijohn of wort or spraymalt made to 1.040 :thumb:

 

[wilsoa1111]

yeah DJ would work but if meant to be enough for 20l dont think putting it in 5l will give much growing space or potential, unless can airate and stir

 

[theboytony]

Don't think its the best idea, from what I've read dried yeast isn't designed for being put into a starter. You would be best off either using four packs or fermenting one batch then splitting the yeast cake between the other three

 

[Belter]

Don't think its the best idea, from what I've read dried yeast isn't designed for being put into a starter. You would be best off either using four packs or fermenting one batch then splitting the yeast cake between the other three

+1

 

[Vossy1]

This post is worth a look. I see no problem with growing dry yeasts on, there are rehydration instructions on the web, I'll try and find em.

Edit...Here

 

[johnnyboy1965]

Its really not worth it. We all like to do things on the cheap, but for the price of SO-4 you might as well buy 4 pkts. If you want to build up your yeast bank have a look at my post Harvesting Yeast in the "How to" section