Water Softners and Beer

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3PegBrew

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I have never once bothered worrying about my water profile. I figured that since I have been using water in a house that uses a water softener my beers requiring soft water would be fine if I use HOT water. If I need hard water, just go cold.

Chemistry is not my forte. Biology is.

So if someone can tell me the flaw in my usage, please be nice.:D
 
I have never once bothered worrying about my water profile. I figured that since I have been using water in a house that uses a water softener my beers requiring soft water would be fine if I use HOT water. If I need hard water, just go cold.

I don't quite follow the reasoning here. Though protection of the heater is one of the main reasons for installing a water heater in most houses the output of the water softener feeds both the cold water side of the plumbing and the water heater. Thus the water out of the hot and cold taps is equally soft but the hot water may well contain more dissolved metals as it typically is used in a mode in which the hot water stands in contact with metal parts/plumbing for extended periods (overnight or longer if you don't run the dish washer or clothes washer evey day). In general one should not use water from the water heater for cooking or brewing for this reason.

Now on to softening. When brewers say Pilsner beer is made with soft water they really mean that it is made with water of low mineral content. As that includes (or rather, excludes) the ions that cause hardness (calcium and magnesium) the water is indeed soft but it is also low in bicarbonate, sodium, sulfate, chloride, iron, strontium, fluoride, potassium... In the typical home water softener calcium, magnesium, iron and strontium are removed but they are replaced with sodium ions. Bicarbonate, chloride, sulfate, fluoride... are not touched. The water is, thus, completely unsuited to the brewing of Pilsner (or any other) beer.

In beers made with harder water the calcium is often relied upon to lower the pH of the mash. If it has been replaced by sodium it obviously can't do that. This is why softened water is unsuited to brewing, for example, a typical British ale. The pH reducing calcium is gone but the pH increasing bicarbonate is still there.
 
Not necessarily so. In THIS very house, ONLY the hot water passes through the water softener. The cold water is UNsoftened.

glenn514:mug:
 
...in most houses the output of the water softener feeds both the cold water side of the plumbing and the water heater.
(emphasis added)

In my own brewery the softener only feeds the boiler but this is not usual. AFAIK in most houses it feeds the whole house. What is relevant here is the situation in OP's house. Actually it isn't as he should not be brewing with either water from the hot water heater or softened water.
 
Not necessarily so. In THIS very house, ONLY the hot water passes through the water softener. The cold water is UNsoftened.

glenn514:mug:

this is true in most houses built with the intentions of installing a softener. Sometimes they will run a line of un-softened water to the kitchen exclusively and others they will just soften the water going to the water heater.
 
this is true in most houses built with the intentions of installing a softener. Sometimes they will run a line of un-softened water to the kitchen exclusively and others they will just soften the water going to the water heater.

This. In fact, most houses run soft water everywhere EXCEPT the kitchen cold tap and the outside spigot. They do this because softened water tastes like **** and is bad for your lawn. Personally, right or wrong, I never use soft water for brewing.
 
Unfortunately, there is wide variation in how water softeners are used and plumbed in residential applications. My house was plumbed with the softener feeding all interior fixtures. I revised that so that it fed only the hot water heater since the HWH is the ONLY piece of equipment that really needs the softener in many areas. Some places have more than calcium and magnesium hardness to deal with and they have to use softening for everything. Softeners take out iron and manganese and that's the reason why a homeowner might have to do that.

I just gave a presentation to the wastewater professional group in Indiana a couple of months ago on the problems presented by ion-exchange softening and the high chloride wastewater they produce. EPA is cracking down on high chloride discharge from wastewater plants across the country. Indiana is currently revising their rule to comply with EPA's goals. High chloride kills the freshwater critters in our streams. The other problem is that the high sodium that we might consume out of those softeners does us no good either.

So, if you can stand the little extra hard water deposits on your cold water fixtures, you really are better off having the softener plumbed to the hot water heater. If your softener is one of the new 'smart' softeners, it will save you salt too.

As AJ said, softened water has NO place in brewing. Moderately hard to hard water is what we WANT for our brewing water. And unless you are decoction brewing a Boh Pils, you HAVE to have a decent calcium content in your brewing water to get good yeast and fermentation performance. Decoction helps release calcium that is bound in the malt grist into the wort.

My advice, use the hard water and possibly dilute with RO as desired for your particular brew. And the most important thing is to make sure the water alkalinity is in line with your mash needs. Acidification or dilution are your best solutions for that requirement.

Enjoy!
 
When I brew, I almost always start with cold water, which does NOT run through the softener in my house. The previous owner installed the softener so that ONLY the hot water heater water was softened. Because I understand that those "hardness" minerals are important to beer, and the added sodium is not desired, I use cold water to begin the brew.

glenn514:mug:
 
I have never once bothered worrying about my water profile. I figured that since I have been using water in a house that uses a water softener my beers requiring soft water would be fine if I use HOT water. If I need hard water, just go cold.

Chemistry is not my forte. Biology is.

So if someone can tell me the flaw in my usage, please be nice.:D

Soft water, as in the water that most store bought spring water contains, is perfect for brewing, as it is a clean slate that you can build any water profile you want by adding the proper proportions of anions by the use of water salts. Soft water from a home water softener is not desirable under any circumstances because it replaces the magnesium and calcium with large amounts of sodium. Yuck!!!

NEVER, EVER use water from the hot water tap in your house for consuming, cooking or anything else but showering and cleaning! Every water heater has a sacrificial anode in it to prevent the steel tank from corroding. Some anodes are magnesium, and some are aluminum. These minerals, as well as other junk (lead), are leached into, and absorbed much more readily by hot water than cold water.
 
...run soft water everywhere EXCEPT the kitchen cold tap and the outside spigot. They do this because softened water tastes like **** and is bad for your lawn.

I'll certainly attest to the fact that it tastes pretty bad. Just mix up a little baking soda in a glass of water - that's what comes out of a softener - and if that doesn't convince one that he shouldn't brew with it I don't know what it would take. I learned this in spades last fall when we moved into our place up north. The water is quite hard and the house has a softener (plumbed to the whole house, unfortunately). I couldn't drink the water and went looking for an RO unit. But my family couldn't find a problem with it. Nor could the place from whom I tried to buy and RO unit (I don't speak French and they don't speak water chemistry).

But there is another side to it. Softened water is, where the hardness is appreciable, loaded with sodium and is thus not very healthy. In this crazy world someone who had a heart attack could probably sue a plumber or builder who wired the softener to the kitchen sink (at least in a blue state). So I wonder if there might not be a trend away from this in more modern houses.
 
NEVER, EVER use water from the hot water tap in your house for consuming, cooking or anything else but showering and cleaning! Every water heater has a sacrificial anode in it to prevent the steel tank from corroding. Some anodes are magnesium, and some are aluminum. These minerals, as well as other junk (lead), are leached into, and absorbed much more readily by hot water than cold water.

So you are saying that consuming hot water is unsafe?

Honestly, this forum makes me laugh daily. You guys are a hoot! :rockin:
 
Well, it's not really that dramatic. AWWA has a little book on water for the consumer and it definitely recommends against it. But I think the best way to convince anyone that he shouldn't use hot water in brewing (or for cooking) is to have him taste the hot water out of the hot water tap. The few times I have done this it has tasted pretty bad.

But everyone has been in a small commercial brewery that used a hot water heater as an HLT. How do they get away with it? The answer is that the water doesn't stand in the heater for days i.e. the heater is frequently flushed and the amount of metal from pipes, sacrificial anodes, steel parts etc. just doesn't have time to dissolve to any appreciable degree.
 
So you are saying that consuming hot water is unsafe?

Honestly, this forum makes me laugh daily. You guys are a hoot! :rockin:

What? Do you think I'm making this stuff up? I love you guys and would never purposely steer you wrong! I'm not talking about hot water in general, like cold water being heated to make tea or coffee. I'm talking about the hot water tap in your house from the water heater. It's a well know issue in the plumbing trade and the culinary arts to not consume or cook with hot water from the tap.

Just a cursory Google search pulls up a ton of info on it.

Get the Lead Out: Don't Drink, Cook with Hot Water From the Tap
 
I'm glad I read this thread. I always used hot water from hot water heater in my HLT. I won't be doing that anymore.

Come on guys. Seriously? Hot water tanks are lined with glass (or something else, but not metal). Unless you live in an old house with lead pipes between your hot water tank and your sink, it's not an issue.
 
Come on guys. Seriously? Hot water tanks are lined with glass (or something else, but not metal). Unless you live in an old house with lead pipes between your hot water tank and your sink, it's not an issue.

Yes they are lined with glass, but the tanks are made of steel. If there was no chance of the glass lining becoming compromised, exposing the steel tank to the water, then no water heater manufacturers would include a sacrificial anode rod, correct?

Most water heaters, except the higher end ones, use an aluminum anode rod. Not something that I want my family to consume. And by "old house", that would mean any house built before 1986. I'm sure there are plenty of people here that live in a house built before 1986. The pipes may not be made of lead, but before 1986 solder containing lead was till in use for potable water.

There is just no need to risk it considering that using hot water will only save a few minutes.
 
Yes they are lined with glass, but the tanks are made of steel. If there was no chance of the glass lining becoming compromised, exposing the steel tank to the water, then no water heater manufacturers would include a sacrificial anode rod, correct?

Most water heaters, except the higher end ones, use an aluminum anode rod. Not something that I want my family to consume. And by "old house", that would mean any house built before 1986. I'm sure there are plenty of people here that live in a house built before 1986. The pipes may not be made of lead, but before 1986 solder containing lead was till in use for potable water.

There is just no need to risk it considering that using hot water will only save a few minutes.


So what happens if I live in a house built before 1986 and I use the hot water to cook with?
 
So what happens if I live in a house built before 1986 and I use the hot water to cook with?

You may be slowly consuming lead, and other metals, that the hot water leaches out of the pipes. Hot water readily does this, cold water does not. Even with cold water, if it hasn't been run in a while, you should run the cold water for a minute or so to flush out the water that's been sitting stagnant in the pipes.

I'm not trying to be a contrarian d!ck. Just passing on what I've learned from years in the trade to my online brew buddies. :mug:
 
Good info here. As a side note you should drain your hot water heater every year. If you still want to brew with it after seeing what comes out be my guest. I winterize bank owned properties and frequently drain water heaters and you would be disgusted to see what comes out of them.
Just so you know every restaurant I've been in uses hot water for cooking. That been said. I use filtered well water and a instant hot water heater for brewing.
 
Just so you know every restaurant I've been in uses hot water for cooking. That been said. I use filtered well water and a instant hot water heater for brewing.

As I indicated in #12 breweries can do this safely because water is not allowed to stand for days in the heater - it is flushed out every day when they brew. It's the same for a busy restaurant. It isn't the heating that is the problem. It is allowing heated water to stand in contact with soluble material for long time periods.

As for the junk in the bottom of the water heater: that is largely harmless calcium and magnesium carbonate precipitated when the water is heated as those minerals are less soluble in hot water than cold. Colored with the hydroxides of iron and manganese the result can be pretty ugly stuff.
 
my house is 6 years old. Built by a Chicago contractor. Not sure if this matters.
 
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