Using Your Vents
I’ve found many don’t know how to properly use the vents on their grill to help them cook. The best example of this is my sister Karen, who thought the bottom swivel was only to clean the ash. Bless her heart.
Simply put, the more airflow you have, the higher your temperature rises. This is one of the best parts of using a Weber grill. When you have a full load of coals in there you can be anywhere between 250 and 600+ degrees! With practice, you will have amazing control over the temperature of your grill.
I almost always keep the bottom vents wide open. This really keeps the air flowing and easy to control.
The top vent is what I use for control. I start with them wide open until I get to the temp I need for that specific meat, then I begin to close them to lower the temp if needed. When I’m smoking I keep the top vent closed a bit more to keep the smoke around my meat as long as possible.
I will occasionally close the bottom vents while cooking if I want the temperature lower for a slower cook.
And yes, when I’m done cooking and the grill is cooled down, I use the bottom vent swivel to clean out the dry ash. :)