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Home Brew Forums > Home Brewing Beer > Extract Brewing > A lb is a lb, A liter is a liter, but a gallon is????
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Old 09-06-2006, 07:12 PM   #1
newfie
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Default A lb is a lb, A liter is a liter, but a gallon is????

So, my question is with respect to ppg. What gallon is it? Imperial or US?

Example;

7.5 lbs light LME with a 35 point contribution per pound per gallon.
23 Liter wort volume

imperial gallon
grav = 1.052

US gallon
grav = 1.043

So whats the deal?
Who knows?
right on,
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Old 09-06-2006, 07:29 PM   #2
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Spelling

If English units are intended then something in the recipe will be spelled weird.(Or in your example...Liter is used which probably would not be used if this was an English recipe. They would not combine the measure of Liter and Gallon in the same recipe. Also If it were English....liter would probably be spelled Litre)

So you can be sure that recipe is meant to use US gallons. Americans are about the only people on the planet who would use Liters and Gallons in the same recipe.

Most recipes express OG. If you add water to the wort to get the desired OG then it really does not matter what type of gallon you are using because you do not actaully use the measurement anyway....it is a "guideline".

If the recipe does not state OG and FG.....then you should look at the style guidelines and see which gallon would put you in the correct SG for the style of beer that you are brewing. One of the two types of Gallons would put the SG out of the style guideline and you should use the one that does not.

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Old 09-06-2006, 09:17 PM   #3
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If a recipe is in lbs and ozs you can be fairly sure you can assume USG.

BTW DJ31...If a recipe is using SI units (or English units as you call them) I can assure you everything will be 'spelled' correctly as per the 'English' language.

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Old 09-06-2006, 09:32 PM   #4
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A lb is a lb, A liter is a liter, but a gallon is????

ANSWER: 4 Quarts!!!

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Old 09-06-2006, 09:35 PM   #5
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ProMash has a great conversion tool.

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Old 09-06-2006, 10:32 PM   #6
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If the DME is in measured in kilos or stones, the gallons are Imperial. Otherwise, figure 61,440 minims each or 1.6 board-feet if you live in Timbertown.

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Old 09-06-2006, 10:35 PM   #7
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Quote:
Originally Posted by david_42
If the DME is in measured in kilos or stones, the gallons are Imperial. Otherwise, figure 61,440 minims each or 1.6 board-feet if you live in Timbertown.
Nothing like tossing a few stones of DME into the boil pot!
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Old 09-06-2006, 10:39 PM   #8
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Default i guess my question is ....

With respect to gravity contribution from extracts. If using coopers light LME, and its listed as 35 points per pound per gallon; which gallon are they referring to.
When formulating recipes and trying to hit specific gravities this is an important piece of information.
right on
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Old 09-06-2006, 10:44 PM   #9
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The correct answer is, we don't know. Coopers produces products in five or six countries. Your recipe is pounds & liters.

LME at 35 points per pound per gallon is probably (~95%) talking US gallons.

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Old 09-06-2006, 10:52 PM   #10
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And in Canada I use x Kilos of grain for 5 US gallons or 19 liters.
But I measure short distances in feet and inches yet drive 7 kilometers to town to buy a quart of milk, or er, is that a liter of milk?

I have two 10 Imperial Gallon carboys and three 5 US Gallon carboys.

I also know that a liter of liquid extract weighs 3 lbs. But have no idea how tall I am in Meters.

Ahh, living in a metric country next to non Metric USA.
Even though we are officially metric, all building codes in Canada are in Feet and inchs and PSI, etc. Go figure!

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