Crystal malt ABV formula?

[Monkeybrew]

Hi

Can anyone give me an idea of how much crystal malt that I need to steep, in order to the raise the gravity by 10 points in 10 litres of wort?

Hope that makes sense.

[trucker5774]

Does this help http://www.hopandgrain.com/formulator.aspx

Change the brew length to suit and enter about 400g for the grain.................should give you a good start

[Eadweard]

You want to add 10 degrees to 10 litres. This is 100 litre degrees. The extract from crystal malt is around 270 litre degrees per kg. 100/270=0.37 therefore you need to add 370g.

[Monkeybrew]

Excellent, many thanks to the both of you

[gregorach]

You want to add 10 degrees to 10 litres. This is 100 litre degrees. The extract from crystal malt is around 270 litre degrees per kg. 100/270=0.37 therefore you need to add 370g.

Except that's assuming 100% efficiency, which you'd certainly never get from a mash. I have no idea what sort of efficiency you'd get just from steeping... I'd go for 500g as a first guesstimate and see how it ends up - if you end up too high, you can always dilute it.