Fixing the “Cold Edge” Problem in Industrial Pizza Ovens
If you’ve spent any time with a large-scale bakery oven, you know the frustration of the “cold edge.” You pull out a tray and the center looks perfect, but the crusts around the perimeter are pale and underdone. It happens because heat just loves to leak out of the edges of the baking chamber. It’s a pain, and it kills your consistency. To fix this, we use infrared ceramic heaters as a little bit of extra help. How it actually works Most ovens rely on air moving around or the heat stored in a heavy stone. That’s great for the bulk of the pizza, but it’s just too slow to stop the heat from escaping at the edges. Our ceramic heaters are different. They shoot out short-wave infrared radiation. Instead of waiting for the air to get hot, this energy hits the dough directly. By lining the perimeter of the oven with these, you basically build a “thermal curtain” that plugs the leak. The gear We wrap these heaters in high-alumina ceramic. Why? Because commercial kitchens are brutal, and these things need to handle the constant heating and cooling without cracking. You can pick the wattage based on how big your oven is. If you go with higher wattage, your oven bounces back much faster after you open the door. Just a heads-up: make sure your control relays can handle the extra current. You don’t want them burning out in the middle of a Friday night rush. Getting it installed These are pretty straightforward. You can drop them in as replacements or just add them to what you already have. You can either wire them into your current zone control or set up a separate PID loop specifically for the edges. But here is the trick: infrared heat is directional. If you mount them too close, you’ll char the edges of your crust before the middle is even melted. It takes a bit of tweaking. You’ll need to play around with the distance and the timing to match your specific dough—especially depending on how thick it is or how much water is in it. It’s a bit of a balancing act, but once you nail it, every pizza comes out looking the same.