How do I make it stronger?

[JayMc]

Yesterday I got Bulldog's Four Finger Jack. This is only my second kit and it is supposed to turn out at 4.6%ABV.

My question is, is there anyway to increase the percentage? Do I add extra sugar or something?

[johnrm]

Add more sugars.
Use less water.
Use a more attenuative yeast.

[mr hoppy]

Sugars can be DME.

[DEMPSEY]

Sugar alone will just make it a bit thin and only give you alcohol with nothing else by way of flavour. Try adding DME

[Bubbles]

Brew it short, to 21 litres instead of 23. More alcohol, but more flavour and body too.

[JayMc]

Thanks for the advice everyone. I would like to add some DME (if only I had some) but today is the only day I can start the brew and I refuse to wait till next Sunday 

I am just going to make 21 Litres instead of 23 in the hope that it will bring it to around 5%.

Use a more attenuative yeast.

I am completely clueless when it comes to different types of yeast. For now I will just use the one included in the kit and research variations of yeast for the next kit.

Thanks again everyone for all your help.

[irish_goat]

You can add DME later on if you really want. Just boil it for 10-15 minutes in some water, let it cool and then add it to the fermenter.

[LordEoin]

add an extra 300g of sugar

[JayMc]

You can add DME later on if you really want. Just boil it for 10-15 minutes in some water, let it cool and then add it to the fermenter.

Does it matter at what stage I do this? Should it be done before the krausen appears? Also any suggestion on what type of DME to use?

[irish_goat]

Nah you can do it at pretty much any stage now. I'd use light or extra light DME for a pale ale kit.