If you happen to have a metal grate that is susceptible to rusting, like iron or another sort of grate with the coating stripped, you'll need to brush the grate after each cooking session while the grate is still very hot. Otherwise, you may accumulate rust on your grill grate, which is not good for such a lot of different reasons.
Kung mangyari sa iyo na magkaroon ng isang bakal na rehas na bakal na madaling kapitan sa rusting, tulad ng bakal o isa pang uri ng mga rehas na bakal na may patong Nakuha, kakailanganin mong i-magsipilyo ang lagyan ng rehas pagkatapos ng bawat pagluluto sesyon habang ang rehas na bakal ay masyadong mainit pa rin.