[Lenk]

When topping off your fermenter to 5gal should the water be boiled first?

[duboman]

Some do, some don't. I never did and never had any issues. I'm not suggesting I'm right, I just never did it.

[paul]

No boiling for me, but I use bottled water to avoid adding chlorine.

[Jimmy K]

I don't

- Sent by my R2 unit

[klickitat jim]

+1
I get what I get

"Freedom is temporary unless you are also Brave!" - Patriot

[redbeerman]

Most of the time I don't.  I don't recall ever having a problem either.

[HoosierBrew]

I don't either.  I top off with bottled water.

[erockrph]

I use bottled water if I need to topoff. I think sealed bottled water is sanitary enough not to cause a concern. I don't like to use a bottle I've already opened, but honestly that's probably fine as well.

[davidgzach]

I've topped off straight from the tap numerous times with no issues.  However, I'm lucky to have very good water.  YMMV....

[Joe Sr.]

I top off with filtered tap water.  I do not boil, water runs through a carbon filter deal under the sink.

I've had no problems.

[In The Sand]

Are you not able to do full boils?  If not, +1 on topping off with bottled water.  However, before I was able to do full boils I just topped off with filtered water.  No boiling done.

[kramerog]

Now that I can do full boils, I don't add water on purpose to a fermenter.  Before I add my immersion cooler to the boil, I will check the volume and top off if necessary.

I used to use tap water, before doing full boils.  If you use a proper starter and your water is satisfactory then you could probably get away with topping the fermenter without boiling.

[Wort-H.O.G.]

i often have a few quarts of wort left over from mash, as my efficiency seems to be a touch higher than my program calculates. i top off with that when needing extra volume, and i do boil it just to be sure.

[morticaixavier]

i often have a few quarts of wort left over from mash, as my efficiency seems to be a touch higher than my program calculates. i top off with that when needing extra volume, and i do boil it just to be sure.

with wort that is a very good idea. there are a lot of microbes on that grain and not all of them are going to die at mash temps.

[Pi]

Just remember, if you are adding water boiled or not you airate well. Boiling removes oxygen, you need to put it back.