Spike Brewing 12.5 Conical Fermenter Giveaway - Enter Now!

Home Brew Forums > Home Brewing Beer > General Beer Discussion > calculating plato

Reply
 
LinkBack Thread Tools
Old 09-16-2011, 01:59 PM   #1
indianaroller
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2008
Posts: 192
Liked 4 Times on 4 Posts

Default calculating plato

I'm unsure how to calculate degrees plato if I have a known volume of water in liters and a known amount of extract in kilograms. Could someone please help me out?

__________________
indianaroller is offline
 
Reply With Quote Quick reply to this message
Old 09-16-2011, 03:32 PM   #2
BBL_Brewer
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
BBL_Brewer's Avatar
Recipes 
 
Join Date: Feb 2011
Location: Kokomo, IN
Posts: 3,697
Liked 423 Times on 294 Posts
Likes Given: 315

Default

If you want to calculate plato before you add the extract to the water, then you need to know how much gravity your extract will contribute. For instance, say your extract contributes 40 points per pound per gallon. This means that 1 lb dissolved in 1 gallon of water will yeild a gravity of 1.040. Once you know what your gravity will be degrees plato is easy. Lets say your gravity is actually 1.040. Degrees plato = 40/4 = 10. If the gravity is 1.055, degrees plato = 55/4 = 13.75. In your case, you'll have to convert liters to gallons and kilograms to pounds. I use a handy conversion calculator for such things. http://www.onlineconversion.com/

__________________
Slots Down Brewery
Stick with the plan....not the sparge.


Never Ending Liquid Yeast - How to Farm Yeast and Freeze it.

BBL_Brewer is offline
bytor2012 Likes This 
Reply With Quote Quick reply to this message
Old 09-17-2011, 03:17 AM   #3
indianaroller
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2008
Posts: 192
Liked 4 Times on 4 Posts

Default

Well, I'm having someone write me a custom brewing program so I think I want the formula to look like this - Plato= Malt(kg) X Extract Potential % X Efficiency % / Liters. This makes sense since plato is the weight of sucrose/weight of water. But this doesn't seem to be the case when comparing that to what BeerSmith gives me. I guess I just don't get it, but do you see what I want to do?

__________________
indianaroller is offline
 
Reply With Quote Quick reply to this message
Old 09-17-2011, 03:19 AM   #4
logdrum
Feedback Score: 1 reviews
Recipes 
 
Join Date: Aug 2010
Location: North Olmsted, Ohio
Posts: 790
Liked 39 Times on 35 Posts
Likes Given: 22

Default

You don't need the efficiency factor w extract

Sent from my iPod touch using HB Talk

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


Quick Reply
Message:
Options
Thread Tools