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Old 10-30-2009, 10:01 AM   #1
Oct 2009
Posts: 3

im new to brewing but had a couple quick questions about random steps in the process and i am trying for an all grain method. is it possible to use bottled water for the beer and when you lower the ph level with gypsum does that mean i could drive to the hardware store and pick up some plaster and use that??? i want to malt the grain myself and i dont know if its safe to pick up local grains because they might be chemically treated?

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Old 10-30-2009, 10:10 AM   #2
Dec 2006
Doylestown, PA
Posts: 3,725
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Bottled water? yes, spring water/drinking water generally will work fine though you won't know the mineral profile and might have to brew a batch or two to find out what tweaks you'll want to do with it depending on the beer in question going forward.

plaster? no

local malt? inquire with your supplier/feed mill to find out if the grains are suitable

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Old 10-30-2009, 12:21 PM   #3
pilotdane's Avatar
May 2009
Roxboro, NC
Posts: 330
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Unless you buy organically grown grains you can assume that some pesticides & herbicides were used in it's production no matter if you buy it from your local feed store or purchase brand name brewing grains. Depending on where you live barley may be hard to find at the local store. There are no suppliers in my part of North Carolina that carry barley feed or seed. It is sometimes available as feed but because of it's cost compared to other grains it's pretty scarce around me.

Take a look through any beer suppliers list of malted grains and you will quickly learn that there is a lot more to it than just barley. There are easily 50 or more types of malted barley used in brewing. I looked at growing and malting my own but quickly realized that that was an entire hobby/job in it's own right so I decided to focus on brewing beer and growing my own hops.

As for using wall plaster I would say no. Yes it would adjust the PH but you don't know all the other chemicals (plasticizers, bonding agents, anti caking agents...) added to make modern plaster or drywall mud. Any chemicals you want can be inexpensivley purchased from a home brew supplier.

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