I have a recipe that calls for 6 lbs of DME. I'm using LME though. It comes in 3.3 lb containers so I'll have 6.6 lbs. But if it takes 20% more LME than DME I'll need 7.2lbs of LME. How can I make up the difference between the 6.6 and 7.2 lbs? I can't just buy .6 lbs of LME.