If left till next season, you will only prolong the nasty task. Even so, there is a DIY way which could prove helpful in this kind of situation.
Clean your grill grates with ammonia and a plastic bag. How can this work, you ask? Read the entire process involved in this `magical` cleaning project.
Also, remember to take the precaution measures suggested. If you still don’t believe it, see for yourself! The before and after pictures are proof that it can be done!
If you seek the same result, make sure you go through all of the DIY tutorial. Good luck and enjoy your barbecues!