I'm asking what will be used for brewing versus what will be used for cleaning, rinsing, bathrooms, etc. Basically, what percentage will end up in a beer and what percentage won't.
I'll have to look into it some more. Rob, the number I found was an average of 14 gallons of water used per gallon of beer. With good conservation methods that can supposedly be dropped to around 7 gallons of water per gallon of beer. From the way it was written I assume that is just for brewing, but I'll keep digging.
This guy has a formula for figuring out how much water you will use for each batch - brewing only, no cleaning or anything else.- He lost me on his grain weight calculations, but everything else seems pretty straightforward. This also looks like a bare minimum, I would estimate using more than what he came up with (roughly 2 gal of water per 1 gal of beer). This is also homebrew so more would likely be wasted on an industrial scale.
The loss of water during the brewing process has to do with the inefficiency of the brewing system. Alot of the literature I've read for homebrewing estimates the lose of about 1 gallon of water for every hour of cooking. Industrial scale brewing may have advantages that we are not aware of in this department, I'm just not sure. Damn, that would have been a good question for Marble.
ok, a couple sources now have said that around 10 gal water per 1 gal beer is average. That is for bottle washing, equip cleaning, and beer production. None of them mentioned restrooms, but they did say that that was the usage of an average brewery so it probably includes restrooms as well. There is a plant in South Africa that has cut it down to 4.5:1, but they are huge and have their own treatment plant etc.
Who calculated water use, and what was that number?
ReplyDeleteAny fresh water going in should be filtered, anything that can be re-used has already been filtered.
-Rob
I'm asking what will be used for brewing versus what will be used for cleaning, rinsing, bathrooms, etc. Basically, what percentage will end up in a beer and what percentage won't.
ReplyDeleteI'll have to look into it some more. Rob, the number I found was an average of 14 gallons of water used per gallon of beer. With good conservation methods that can supposedly be dropped to around 7 gallons of water per gallon of beer.
ReplyDeleteFrom the way it was written I assume that is just for brewing, but I'll keep digging.
http://www.allaboutbeer.com/homebrew/water.html
ReplyDeleteThis guy has a formula for figuring out how much water you will use for each batch - brewing only, no cleaning or anything else.- He lost me on his grain weight calculations, but everything else seems pretty straightforward. This also looks like a bare minimum, I would estimate using more than what he came up with (roughly 2 gal of water per 1 gal of beer). This is also homebrew so more would likely be wasted on an industrial scale.
The loss of water during the brewing process has to do with the inefficiency of the brewing system. Alot of the literature I've read for homebrewing estimates the lose of about 1 gallon of water for every hour of cooking. Industrial scale brewing may have advantages that we are not aware of in this department, I'm just not sure. Damn, that would have been a good question for Marble.
ReplyDeleteok, a couple sources now have said that around 10 gal water per 1 gal beer is average. That is for bottle washing, equip cleaning, and beer production. None of them mentioned restrooms, but they did say that that was the usage of an average brewery so it probably includes restrooms as well. There is a plant in South Africa that has cut it down to 4.5:1, but they are huge and have their own treatment plant etc.
ReplyDeleteInteresting article on what the different minerals in water do to the taste of beer:
ReplyDeletehttp://beer.pdqguides.com/beer-ingredient-water.html