LME vs. DME

[jammer]

My LHBS only had LME but i had a recipe thats called for DME. The guy said that its not a one to one substitution. So if i wanted to replace 1 pound of DME with LME how much would i use? 1.5 lbs?

Also, does anyone know the volume measure of DME and LME by weight? like cups/lb?

Finally, is it a bad idea to open a can of LME use half and then cover it and use the other half a week later?

thanks

 

[homebrewer_99]

It's really simple...

1 lb of grain equals .75 lb of LME which equals .6 lb of DME

 

[the_bird]

Or MORE simply, 1lb of DME is ~ 1.20lbs LME, and 1lb LME ~ .8lb DME. Not exactly, but close enough for most purposes.

 

[loopmd]

As far as the last question goes, you might get varying opinions here. I think you would be ok treating it like any other opened "foodstuff". Air tight container, lid. Refridgerated. Some guys buy LME in bulk and use it up over time so you should be ok for the short period of time you are talking about.

loop

 

[david_42]

One week is no concern. LME does oxidize slowly and there are a few molds that will grow on it, but many LHBS have LME sitting around in barrels for months without a problem. The Oak Barrel in Berkeley, CA has seven or eight 55 gallon drums of extracts lined up on stands. It a subtle way of letting people know they're into brewing.

 

[JacktheKnife]

Jam,

20% difference,
DME is dried and without water weight,
therefore DME is stronger by 20%.

Knife