BrewHardware Giveaway- Winners Drawn - 24 hours to claim!


Home Brew Forums > Home Brewing Beer > Brew Science > PPG potential conversion to metric
Reply
 
LinkBack Thread Tools
Old 09-06-2010, 10:18 PM   #1
chuckjaxfl
Feedback Score: 1 reviews
Recipes 
 
Join Date: Feb 2010
Location: Jacksonville, FL
Posts: 327
Liked 19 Times on 12 Posts
Likes Given: 23

Default PPG potential conversion to metric

Has anyone already figured out the formula to convert points/pound/gallons to points/kilograms/liters?

__________________
chuckjaxfl is offline
 
Reply With Quote Quick reply to this message
Old 09-06-2010, 11:30 PM   #2
944play
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jul 2008
Location: Santa Rosa, CA
Posts: 2,733
Liked 42 Times on 39 Posts
Likes Given: 56

Default

Code:
bianco:~ john$ units
500 units, 54 prefixes
You have: pounds/gallon
You want: kilograms/liter
	* 0.11982643
	/ 8.3454045
HTH.
__________________
OD: ?
Pri:-
Keg: Simple AIPA (2-row, Chinook, Cascade, WLP090)
944play is offline
 
Reply With Quote Quick reply to this message
Old 09-07-2010, 12:25 AM   #3
chuckjaxfl
Feedback Score: 1 reviews
Recipes 
 
Join Date: Feb 2010
Location: Jacksonville, FL
Posts: 327
Liked 19 Times on 12 Posts
Likes Given: 23

Default

I'm not following.

If I've got DME that will contribute 44 PPG, are you suggesting that I can take that and multiply it by 0.11982643/8.3454045 to get a metric contribution?

That would give me 0.631768409 points (1.0006) wort if I use a kilogram of the DME in a liter of water?

__________________
chuckjaxfl is offline
 
Reply With Quote Quick reply to this message
Old 09-07-2010, 03:00 AM   #4
ajdelange
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2010
Location: McLean/Ogden, Virginia/Quebec
Posts: 6,535
Liked 688 Times on 572 Posts
Likes Given: 19

Default

points/pound/gal = points/(kg*2.2)/(liters/3.78)

Thus points/kg/l = 3.78*2.2 points/pound/gal.

Thus 44 ppppg = 365.9 ppkgpL and 1 kg of this DME in 1L would give 365.9 points or SG 1.3659 (except that at this strength the deviation from linearity would probably be noticeable. OTOH if you put .454 kg in 3.78L you would have 365.9*.454/3.78 = 44 points.

__________________
ajdelange is offline
 
Reply With Quote Quick reply to this message
Old 09-07-2010, 03:13 AM   #5
chuckjaxfl
Feedback Score: 1 reviews
Recipes 
 
Join Date: Feb 2010
Location: Jacksonville, FL
Posts: 327
Liked 19 Times on 12 Posts
Likes Given: 23

Default

So, roughly...

1ppg = 8.316 pKgL?

__________________
chuckjaxfl is offline
 
Reply With Quote Quick reply to this message
Old 09-07-2010, 04:20 AM   #6
BigEd
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2004
Posts: 2,404
Liked 127 Times on 111 Posts
Likes Given: 22

Default

Quote:
Originally Posted by chuckjaxfl View Post
Has anyone already figured out the formula to convert points/pound/gallons to points/kilograms/liters?
They're working on it at CERN during lunch breaks.

http://www.onlineconversion.com/
__________________
BigEd is offline
 
Reply With Quote Quick reply to this message
Old 09-07-2010, 05:00 AM   #7
chuckjaxfl
Feedback Score: 1 reviews
Recipes 
 
Join Date: Feb 2010
Location: Jacksonville, FL
Posts: 327
Liked 19 Times on 12 Posts
Likes Given: 23

Default Thanks

Here is why I was wanting to know.

I've read some pages of people making slants/plates by simply measuring out the DME & Agar dry into each slant/plate, then adding hot water with a dosing syringe.

This seems less wasteful than my current method of making up 100ml of wort/agar, pouring too many plates, and then having them dry up before I can use them.

I wanted the conversion so I could make this spreadsheet. I can enter the numbers in column B, it will tell me what I need in column F.

__________________
chuckjaxfl is offline
 
Reply With Quote Quick reply to this message
Old 09-07-2010, 12:40 PM   #8
ajdelange
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Aug 2010
Location: McLean/Ogden, Virginia/Quebec
Posts: 6,535
Liked 688 Times on 572 Posts
Likes Given: 19

Default

Quote:
Originally Posted by chuckjaxfl View Post
So, roughly...

1ppg = 8.316 pKgL?
Yes.
__________________
ajdelange is offline
 
Reply With Quote Quick reply to this message
Old 11-27-2010, 12:31 AM   #9
honeybadger
Feedback Score: 0 reviews
Recipes 
 
Join Date: Sep 2010
Location: New Zealand
Posts: 77
Liked 1 Times on 1 Posts

Default

I use this a bit (living in metric land).

I find it easier converting it to points per 100g per litre which is 1ppg = .8316 p/100g/L.

I like to work out my effeciency this way as the recipes I use are metric.

__________________
honeybadger is offline
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
ABV and sucrose to ethanol conversion question Jbrewman Brew Science 4 05-26-2012 01:43 PM
Iodine Starch Conversion Test bcbingman Brew Science 3 03-22-2010 04:05 AM
Salts weight to volume conversion? Homercidal Brew Science 3 02-08-2010 08:09 PM
Step Mash Conversion Sixbillionethans Brew Science 0 08-25-2009 03:17 AM
Starch to Sugar conversion Cape Brewing Brew Science 19 03-12-2009 06:19 PM



Newest Threads

LATEST SPONSOR DEALS