Top Tips for Ultimate Barbecuing Success Here are some simple techniques that will help you take charge of the fire versus the fire taking charge of you. 1. Don’t start with a cold, dirty grate. A barbecue needs at least 15 minutes to get the grate hot enough to sear food properly. Preheat every time and always give the hot grate a thorough once-over with a stiff-bristle brush before adding food. A hot, clean grate will brown food better, with less chance of sticking. 2. Season lik...