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Old 02-17-2006, 04:00 AM   #1
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Default Why don't we use deg Plato for gravities

.... it's so much easier do work with in your head:

deg Plato = weight of extract x 100%/ (weight of extract + weight of water)

For lower gravities you can even aproximate it with weight of extract x100% / weight of water

I realized this when I was making a starter last night. I knew that I wanted to have the gravity of the starter around 9 deg Plato. Since I was using 2L of water I knew that I had to add a little less than 200g of extract.

Before, I even thought of printing a table that shows me how much DME to use with how much water to get a specific gravity.

I guess it has to do with the brewing literature available to us. Most of the english books and recipes I read use specific gravity and all of the german recipes and books I've seen so far use deg Plato. That's why I seem to have a stronger urge to use deg Plato anyway.

(I just had to use them )

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Old 02-17-2006, 05:09 AM   #2
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Yes, I always confuse the prepub brewmaster where I get grains from by talking in gravity points instead of plato..or more likey I get way to confused when he starts taling in deg plato, aka balling.

I see the but where's the machine gun?

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Old 02-17-2006, 01:26 PM   #3
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I don't use Plato because I don't use extract. Therefore, the calculations aren't any easier. I also like the decimal type system of gravity. Don't know why.

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Old 02-17-2006, 01:30 PM   #4
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I guess I start using Plato from now on, and do a rough conversion (1.000 + Plato x 4) to get the specific gravity when I want to mention it in this forum.

(I had to copy these from the "laid back" thread)

Kai

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Old 02-17-2006, 02:53 PM   #5
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Quote:
Originally Posted by Kai
(I had to copy these from the "laid back" thread)
Why are you shooting Sasquatch?
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Old 02-17-2006, 03:00 PM   #6
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I use decimal for OG and balling for the finish. That's just because of the way my hydrometers are calibrated. You haven't been confused until you calculate gas additions in PPM per 1000 gallons, convert to liters at STP and add based on cubic inches and PSI! No more Navy for me!

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Old 02-17-2006, 03:00 PM   #7
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Sorry to hijack, but I am a member of the forum where the dancing wookie was created. So weird to see it here.

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Old 02-17-2006, 03:02 PM   #8
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>Why are you shooting Sasquatch?

Just making him dance.

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Old 02-17-2006, 03:16 PM   #9
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[quote=catfish]>Why are you shooting Sasquatch?
[\quote]

I thought it was thing from Star Wars. Forgot it's name.

Yust playing around with the new annoying smilies

Kai

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Old 02-17-2006, 03:18 PM   #10
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Quote:
Originally Posted by david_42
You haven't been confused until you calculate gas additions in PPM per 1000 gallons, convert to liters at STP and add based on cubic inches and PSI! No more Navy for me!
I'll try to stick to metric as much as I can. Hopefullt the gauge will have a bar or pascal scale as well.

Kai
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