What is the proper way to use mouthwash?

Brush your teeth with toothpaste, then rinse with water. Floss. Rinse your mouth with mouthwash for 10 seconds, spit that out, then rinse with water. Don’t leave anything in your mouth for 30 minutes.

My mouthwash says 30–40 seconds not 30 minutes.

Teeth cleaning guide says:
Don’t rinse with water straight after toothbrushing
After brushing, spit out any excess toothpaste. Don’t rinse your mouth immediately after brushing, as it will wash away the concentrated fluoride in the remaining toothpaste, thus diluting it and reducing its preventative effects.
Should I use mouthwash?
Using a mouthwash that contains fluoride can help to prevent tooth decay, but don’t use mouthwash – even a fluoride one – straight after brushing your teeth or it will wash away the concentrated fluoride in the toothpaste left on your teeth. Choose a different time to use mouthwash, such as after lunch. Don’t eat or drink for 30 minutes after using a fluoride mouthwash.

“Don’t rinse your mouth immediately after brushing, as it will wash away the concentrated fluoride in the remaining toothpaste, thus diluting it and reducing its preventative effects.”

But most municipal water supplies have fluoride added, so isn’t it pretty much the same difference?

@Darth_Algar I think the key word is concentrated. The water supply is much more dilute

Maybe, but some toothpaste brands don’t include it at all.

@Darth_Algar Really? I didn’t know that. I think things are different over here. We have fluoride added to water and are recommended to have fluoride toothpaste.