How many sachets?

[AlanManley]

Got a RIS on the go. Aiming for a 1080OG.

Will I need one or two packs of 11g Lalleland Nottingham Dried yeast?

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[Dutto]

I suggest one because with an OG that high it will deliver more than 9% ABV and probably take off like a rocket! :thumb:

 

[dan125]

I would use 2 given the OG & assuming its a 23L ish batch, and start at a low temp.to try to control the fermentation.

 

[Gunge]

Use CML US Pale and you'd probably get away with using one grain. That stuff is mental.

 

[AlanManley]

Very mixed inputs! 🤣
I went with one as needed to pitch before a reply. Gathered I can add more if needed. Aiming for 9% so fingers crossed!

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[DoctorMick]

I'd use 2, for the sake of a couple of quid it'll do no harm and it's better than a stuck brew.

 

[YeastFace]

Have you checked on a yeast calculator (Mr Malty, Brewers Friend etc)?
I'd be much more comfortable with two packs at that OG, what size batch is it?

 

[Saisonator]

Definitely 2 packs but if I used 1 it would be re-hydrated first.

 

[Dutto]

I'd use 2, for the sake of a couple of quid it'll do no harm and it's better than a stuck brew.

I've never known a "stuck" brew to be caused by a lack of yeast; sorry.

A lager left in a fridge to ferment out over a period of ten weeks will still carbonate without the addition of any extra yeast.

I've always been given to understand that the usual causes of a "stuck" brew are either a lack of oxygen, a lack of fermentable sugars or a lack of nutrients.

 

[DoctorMick]

I've never known a "stuck" brew to be caused by a lack of yeast; sorry.

A lager left in a fridge to ferment out over a period of ten weeks will still carbonate without the addition of any extra yeast.

I've always been given to understand that the usual causes of a "stuck" brew are either a lack of oxygen, a lack of fermentable sugars or a lack of nutrients.

You don't need to apologise, it's quite alright. It is a common cause tho, look at the number of threads on hear for stuck wherry brews, that's because enough yeast isn't provided. The excellent "Yeast" brewing series book explains it in detail.

 

[AlanManley]

Definitely 2 packs but if I used 1 it would be re-hydrated first.

Hey,

I always rehydrate it so hopefully the one rehydrated will be enough. 🤞

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[dad_of_jon]

Hey,

I always rehydrate it so hopefully the one rehydrated will be enough. 🤞

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I got 12.86% with one packet or re-hydrated yeast for 22 litres - Mangrove jacks suitable for up to 14% I used, :whistle: