base grain to extract conversion rate

[mfraier]

If you add a pound of base grain how much extract would you subtract?

 

[BendBrewer]

.75 is a good rule of thumb.

Or is it .7?

 

[dcp27]

approx 1lb base malt = 0.75lb LME = 0.6lb DME, kinda depends on your efficiency tho