Munich LME/DME

[spiderwrangler]

Also, if you ARE going from JZ's BCS book, he says how much Munich grain to use in place of LME.

[Ozwald]

most Liquid malt extract yields 36 gravity points per lb in 1 gallon. (ie, a lb of extract dissolved in 1 gallon of water will give you a 1.036 wort). Use 44 here if the recipe calls for Dry Malt Extract.

36 times the number of lbs in your recipe gives the number of points you need.
so, if your recipe calls for 5 lbs, you use 5x36 = 180 points.

In a standard mash, you use your normal extraction efficiency * the max extraction (which for most base malts is around 36, but you need to actually look at the specs on the bag of grain to be totally accurate.

Here, 36 pppg again is a reasonable approximation for max extraction.
However, when mashing you normally get around 70-80% efficiency. When doing a partial mash, the efficiency is even less, 50% is a safe number to use. Multiply that by your efficiency to see how many points you'll extract per lb: in this case .5 x 36 = 18. For 70% efficiency, it's .7x36 = 25.

so, take the points you need: 180
divide by the points per lb you';ll get: 18
so 5 lbs of LME is equivalent to:
180/18 = 10 lbs of grain in a mini mash
or 180 / 25 = 7.2 lbs in a normal mash where your efficiency is 70%.

Is this answer programmed in a macro yet?

[SleepyCheese]

Also, if you ARE going from JZ's BCS book, he says how much Munich grain to use in place of LME.

Yes its the Hoppiness is an IPA recipe from that book. Ya know I could have sworn I saw somewhere he stated how much munich grain to use in place of munich LME but for the life of me could not find it. Thought I was dreaming. Maybe its at the beginning somewhere? I looked before posting here, but couldn't find it.

And thank you much BD, you allowed me to have a break through mathwise. I can never comprehend the math in certian convertions, but I calculated along with you and I understood it. That will be priceless info in future brews!

[spiderwrangler]

It should be at the end, with the 'All Grain' recipe. Ignore the base malt, but it SHOULD have the Munich poundage listed as well.

[Fugglupagus]

It's there. Go for it.

FWIW munich extract blends (usually 50% munich/50% base malt) have become more common since JZ’s book was published. It’s possible to buy a quantity for one recipe, or maybe split into two recipes strung together over a couple of weekends. Now days I can buy specific weights from my LHBS. I think Brewmaster’s Warehouse also sells custom weights. Northern Brewer sells it in 3+ lb jugs, MoreBeer in pouches starting at 4 lb. There's bunches of possibilities. Just need to remember to double the amount to get the right amount of munich, and to reduce the pale extract accordingly.

[spiderwrangler]

Briess packages it in their 3.3lb plastic screwtop canisters. I use what I need, screw the lid on and drop it in the freezer til I need it again.

[Fugglupagus]

I dump mine in ziplocks, squeeze out the air, and toss them in the freezer.

[Ozwald]

I think Mufasa had some great tips on this subject.