Keg and Fermenter cleaning

[brewdaytoday]

How long should hot PBW be sprayed and recirculated through a keg or FV before it is considered clean?

Is there a rule of thumb for how many kegs or fermenters can be cleaned per gallon of PBW solution? Is this dependent on the amount of organic material that needs to be removed?

 

[enkamania]

I usually do 15 minutes on kegs and fermenters that have been hosed off first.

 

[eric19312]

I've been doing 15 minutes on kegs and 30 minutes on fermentors. I keep the cleaning solution at 130 F. Good rinse before starting the cleaning.