It's all just talk

There are several ways that you can remove chlorination from your tap water before you brew with it. This topic should help you to choose which one is right for you.

If you water contains only chlorine and not chloramine, you can let it sit for 24 hours and the chlorine will dissipate into the environment.

Pros:

Free

Cons:

Takes a long time

Will not remove chloramine

If you water contains only chlorine and not chloramine, you can drive the chlorine off by boiling the water for 15 minutes.

Pros:

Faster than waiting for it to off-gas at room temperature

Cons:

Requires a lot of energy and significant time to boil all of your water before you even start brewing.

Will not remove chloramine

A charcoal filter is designed to strip your tap water of chlorine and chloramine, block carbon filters are necessary for effective removal.

Pros:

Fast, nearly as fast as your free-running tap

Removes both chlorine and chloramine

Cons:

Filters last roughly 2-6 months depending on water usage and cost between $5 and $30+ dollars to replace depending on the system.

Some charcoal filters need to have water running through them for about 5-10 minutes before being used when replaced. This clears out any charcoal dust that may have been generated during shipment.

Chlorine and chloramine can be removed from your water by dissolving potassium metabisulfite into it. One campden tablet is enough to dechlorinate 20 gallons of tap water.

Pros:

Very fast - as soon as the K-meta is dissolved in the water and stirred, the water is dechlorinated.

Removes both chlorine and chloramine

Cons:

Powdered potassium metabisulfite smells harsh. If you catch a whiff of the powder when measuring it out, it stings the nostrils not unlike sex panther.