1.7kg coopers stout, 1.5 kg LME 1kg sugar

[thomas353]

Im thinking of adding 1.5kg of LME, 1Kg of sugar to 1.7Kg coopers stout, making 23 litres.
does any one know what the outcome would be, would 5g of high alcohol yeast ferment it,
would i lose the mouthfeel to a dryer thin stout??? never done no boiling of grains.

 

[IslandLizard]

Are you asking if it's OK to add 1.5 kg of LME and 1 kg of sugar to a stout recipe which already contains 1.7 kg of Stout extract in a 23 liter recipe?

The instructions for these 1.7kg cans of flavored malt extract per Adventures in Homebrewing:

Coopers 3.75 pound cans are designed to make 6 gallons with an original gravity of 1.040 (with 2.25 LB of dry malt extract or sugar) giving about 4.1% ABV.

We prefer to make 5 gallons with 3 LB of dry malt extract to give an OG of about 1.054 and 5.5% ABV.

So yeah, you need to add at least 1.5 kg (~3 pounds) of LME to get anywhere near the required gravity (1.045) for that beer. Any extra sugar will boost the alcohol, without adding flavor.

One 5 gram package of yeast, properly hydrated before pitching, may be enough, not sure.

 

[thomas353]

how would i work out the correct amounts, i have searched all over the web, to try and find a recipe, one where the ingredients are available, i can easily learn to boil more wort.

 

[IslandLizard]

Try Brewer's Friend recipe calculator, it's free.

 

[Sadu]

I just ran this through Beersmith for you. Beersmith has profiles for the Coopers kits available so you can get a better idea of how things will come out.

I get this...

OG 1.058
FG 1.007 (Beersmith is always wrong with extracts, let's call it more like 1.012)
ABV 6% if your FG is 1.012
IBU 38.7

I'd say 5g of yeast is cutting things a bit fine for this brew. You might be ok if the yeast is fresh, but you might also experience problems because of it. Those 5g sachets in the kits are designed for a 4% beer that is fermented warm, a 6% brew is not the same thing and requires more yeast if you want a good chance of success.

Also you don't need high alcohol yeast for a 6% beer (that stuff is designed for 10% or more). My suggestion is to use an 11g pack of Safale S-04 dry yeast which is cheap and commonly available.

 

[IslandLizard]

I urge you to read How to Brew. It gives you a good understanding of what makes beer and what makes it better.
The book is much more in detail but the online version covers most of the basics.

Then there are 100s of threads on our forum covering brewing basics, just in the beginners forum alone.
The recipe section has quite a few recipes for (Irish) Stouts, using extracts you can use as is, or as an example to build upon with your own ingredients.

 

[thomas353]

thanks a lot, im trying to run before i can walk, ive been reading how to brew. suppse i can just research and experiment and push a little at a time.