5 liter flask capability.

[burtom]

Hi. I’m going to be brewing a big lager and was wondering how big a starter can be made in a 5 liter flask. I’ll be using a stir plate and fermcap. 4 liters should be doable can you actually do a 5 liter in 5 liters?

Thanks

 

[Conehead]

Yes, with a little head space left over. Are you not supposed to have lots of head space for better oxygen input? Can you just step up?

 

[mongoose33]

I always oxygenate my starters. If your headspace is small in relation to the volume, I'd consider doing that.

 

[burtom]

Yes, with a little head space left over. Are you not supposed to have lots of head space for better oxygen input? Can you just step up?

The timing is not going to be right for doing stepped starters. It’s my wife’s beer and we started the planning a bit late.

 

[burtom]

I always oxygenate my starters. If your headspace is small in relation to the volume, I'd consider doing that.

I will be doing about 60 seconds of oxygen with a wand.

 

[IslandLizard]

I always oxygenate my starters.

This^ is the best thing to do. I do 4 minutes at 1/8 l/m. 1/16 l/m in starters, sorry.

After oxygenating, let it sit for a few hours before starting the stirrer or shaker so you don't blow the O2 out too soon.

 

[mongoose33]

This^ is the best thing to do. I do 4 minutes at 1/8 l/m. 1/16 l/m in starters, sorry.

After oxygenating, let it sit for a few hours before starting the stirrer or shaker so you don't blow the O2 out too soon.

I just put it on the stir plate after oxygenating. I figure that the headspace, by that time, is mostly pure oxygen and the flask mouth is covered with foil, and so there shouldn't be too much outgassing from the wort to the headspace.

 

[jmcquesten]

I've fit a little over 5 liters in my 5 liter flask when using lager yeast. I don't make it that big when using ale yeast though.

 

[day_trippr]

Roughly 5.5 L of 2565 in a 5L flask. 3 drops of Fermcap = zero drama...

Cheers!

 

[burtom]

I've fit a little over 5 liters in my 5 liter flask when using lager yeast. I don't make it that big when using ale yeast though.

Thanks just the information I was looking for.

 

[burtom]

Roughly 5.5 L of 2565 in a 5L flask. 3 drops of Fermcap = zero drama...

Cheers!View attachment 603900

Thanks. Right information and a picture.