Definition of "slurry"

[jceg316]

I'm looking at the starter calculator on Brewer's Friend and I want to know if the jar of yeast harvested from an older batch needs a starter. I poured the dregs of the FV into a 1 litre jar to the brim, stuck it in the fridge and now it's nicely layered. It wants to know slurry amount. Is this the entire contents of the jar: yeast, beer, other matter etc or just the solid matter sitting underneath the beer?

Thanks.

 

[JonBrew]

Unless you plan to 'wash' the contents of your jar to try and get rid of non-yeast materials (I wouldn't bother) then, I believe, the solid matter would be your total slurry volume (assuming you plan to pour off the beer).

You can adjust the slurry density on brewers friend. I usually use the mr malty calculator to work out roughly the cell count and then plug that in the brewers friend calculator.

 

[Slid]

250ml of what you have will do fine, no starter required. I do this all the time.

 

[MyQul]

Slurry is the layered stuff under the beer

 

[jceg316]

thanks for your answers everyone.

250ml of what you have will do fine, no starter required. I do this all the time.

I have definitely underpitched by doing this before and it gives my beer a wheat beer type clove flavour. As I'm making a lager I don't want to risk having these flavours come through, as there's not much for them to hide behind.

 

[MyQul]

What I've done in the past, that works well is to put a table spoon or two from the jar of slurry into a starter. The jar of slurry lasts ages that way and you can keep going back to it again and again for many brews

 

[jceg316]

What I've done in the past, that works well is to put a table spoon or two from the jar of slurry into a starter. The jar of slurry lasts ages that way and you can keep going back to it again and again for many brews

how big a starter do you make?

 

[MyQul]

how big a starter do you make?

For 10L I use a 1L starter and put about 2 dessert spoonfuls of slurry in. I usually make low OG beers of around 1.037. But tbh, I probably wouldn't up anything for a bigger beer as this seems to make enough yeast from the looks of things

 

[jceg316]

For 10L I use a 1L starter and put about 2 dessert spoonfuls of slurry in. I usually make low OG beers of around 1.037. But tbh, I probably wouldn't up anything for a bigger beer as this seems to make enough yeast from the looks of things

Thanks for the advice on this!

 

[MyQul]

Thanks for the advice on this!

No problem.

Just to be clear, the slurry is quite thick as it's been in the fridge for at least a week so is is like thick custard - lots of cells in their

 

[Llamaman]

the slurry is quite thick ...is like thick custard

TL;DR version - do NOT accept the offer of crumble at MyQul’s house.

 

[MyQul]

TL;DR version - do NOT accept the offer of crumble at MyQul’s house.

Oh, I dont know. Beer trifle doesnt sound too bad, does it?