how much alcohol percent does 1kg dextrose add?

[WelshD]

I have an IPA kit that is 5.6% when adding 1kg sugar, if I only added 500g what percent would it be?

Thanks

 

[Drunkula]

2.7% for 23 litres.

 

[terrym]

1kg dextrose adds the potential for about 2% ABV in 23 litres, 500g adds 1%.
If you want to juggle with ingredients use the BF calculator which is what I did, using 'extract', since its a kit
https://www.brewersfriend.com/homebrew/recipe/calculator

 

[WelshD]

2.7% for 23 litres.

so it would be around 4% if i only add 500g?

 

[WelshD]

i have the mangrove jacks red ipa and it is meant to turn out at 5.3% so if i put only 500g of sugar instead of 1kg will it be 4.3? will it be too thin?

 

[Pirate_Pete]

i have the mangrove jacks red ipa and it is meant to turn out at 5.3% so if i put only 500g of sugar instead of 1kg will it be 4.3? will it be too thin?

From what terrym says above yes it will be 1% lower.
It won't be thin. If anything adding more dextrose or sugar will make it thin.
I usually only use LDME, not sugar or dextrose when making lighter beers like Lager to avoid thinning them out.
English bitter I might put some sugar in.
If you only want it at 4.3 I'm sure it'll be fine.

 

[pms67]

I wondered about this also, isn’t corn sugar/dextrose recommended if trying to make a light Bud type lager?

 

[Pirate_Pete]

I wondered about this also, isn’t corn sugar/dextrose recommended if trying to make a light Bud type lager?

Well, Coopers used to have a bit on their website saying to use Light Dry Malt in the European Lager.
I haven't been able to find it since the website updated. Maybe I should email them.
I think the reason was because adding dextrose to a Lager would thin it out.
Personally unless I'm following a recipe I only use LDME.
If you have a look at the Lager recipes on Coopers website they seem to all have LDME or one of their mixes.
Not dextrose.
Cooper's Lager Recipes