Campden tablets: how much?

How much for a 5 gallon batch? 1/2? 1/4? I've got a pill cutter, so on good to go....

I usually do half a tab for 5 galloms.

I use half a tab for 5-10 gallons. Every time I have tried to quarter one it turns to powder so I just use half a tab for anything under 10 gallons

1 tab for 6 gallons the night before I use the water.

I use one tablet in about 14 gallons strike/sparge water. You are using this to get rid of chlorine right? I have read that one tablet will treat 20 gallons for chlorine.

Since you have a pill cutter (wussy)...I would use x/20 of a tablet. X being the number of gallons you are treating. Sorry I had a few.

I prefer to crush the tablets and use weight to water ratio.

0.44g/20 gal = x/H2O vol.

Then do crossies, cancellation, and division.

GilaMinumBeer said:

I prefer to crush the tablets and use weight to water ratio.

0.44g/20 gal = x/H2O vol.

Then do crossies, cancellation, and division.

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Or do 1 tab for 20 gallons, 1/2 tab for 10, 1/4 tab for 5.

Oh wait, I forgot how bad the water in Oklahoma was....

GilaMinumBeer said:

I prefer to crush the tablets and use weight to water ratio.

0.44g/20 gal = x/H2O vol.

Then do crossies, cancellation, and division.

Click to expand...

Did you just go weigh a tablet?

lschiavo said:

Did you just go weigh a tablet?

Click to expand...

Not just now.

AZ_IPA said:

Or do 1 tab for 20 gallons, 1/2 tab for 10, 1/4 tab for 5.

Oh wait, I forgot how bad the water in Oklahoma was....

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And yet, OKC is said to have the "best" water in the state.

I use potassium metabisulfite in powder form and weigh it out like Gila does. .44g/20 gallon or .022g/gallon.

I was talking about this to my LHBS. He said just leave your water out o/n with nothing added and that will get rid of chloramine. Any thoughts on this?

I think chloramines are much harder to get rid of then chlorine so I don't think the old trick of leaving your water out overnight will work. My water has chloramines so I just treat it with Campden tabs. I haven't noticed any off flavors

I think I'm using them to remove chloramines. I had some "remarks" in some judging sheets about some off flavors from "poor fermentation." I have a ferm fridge and I always use starters, so I thought I would try this. Thanks for the input, I'll likely go with 1/2 for ~10 gallons of water for the batch.

lschiavo said:

Since you have a pill cutter (wussy)...I would use x/20 of a tablet.

Click to expand...

Thats awesome.