By Commercial Service Company · October 23, 2026
If your flat-top is cooking eggs to order on one side and scorching them on the other, you're not imagining it. Griddles are simple machines, but hot and cold spots usually point to something specific going on underneath the plate. Here's what typically causes it, what you can do day to day, and when it's time to call a technician instead of fighting it with spatula placement.
Why Griddles Heat Unevenly
A flat-top griddle is only as even as the heat source underneath it. Most central Arkansas kitchens run gas griddles with multiple burner sections and a steel or chrome plate on top. When one part of the plate runs hotter or colder than the rest, the problem is almost always one of a handful of things:
- A burner that isn't firing evenly across its full length, so part of the plate gets less direct heat.
- A worn or miscalibrated thermostat that's no longer reading the plate temperature accurately in that zone.
- A warped or pitted plate that no longer sits flat against the heat source, creating air gaps.
- Grease, carbon, and food debris built up underneath or around burner ports, blocking consistent flame.
- Age and wear on multi-zone griddles, where each section has its own burner and thermostat and one has simply started to drift out of sync with the others.
On electric griddles, uneven heat often comes down to an element that's failing in one zone, or a thermostat sensor that isn't making good contact with the plate anymore.
Burner and Thermostat Problems
Burners and thermostats are the two parts doing all the real work, and they're also the two parts most likely to drift over time. A burner with clogged or partially blocked ports won't spread flame evenly, so you get a hot stripe where the flame is strong and a cooler patch where it isn't. A thermostat that's lost accuracy will tell the burner to cut off too early or run too long for that zone, even though the dial still looks normal.
These are gas and electrical components, and testing or adjusting them isn't a DIY job. A licensed technician can check burner flame patterns, verify thermostat calibration against actual plate temperature, and confirm gas pressure and electrical connections are within the manufacturer's limits. If you smell gas, see scorching on the cabinet, or notice a burner that won't stay lit, shut the unit down and call for service rather than troubleshooting it yourself.
Plate Cleaning Habits That Help
A clean, well-maintained plate won't fix a bad burner, but a dirty plate can absolutely cause or worsen uneven cooking. A few habits go a long way:
- Scrape the plate while it's still warm, not stone cold, so grease and carbon come off instead of hardening in place.
- Clean corner to corner every shift, not just the center where most of the cooking happens. Carbon buildup at the edges insulates the plate and creates cold spots.
- Keep the grease trough and drain clear so grease doesn't pool and bake onto the plate underside over time.
- Season the plate as the manufacturer recommends rather than scrubbing it down to bare metal, which can leave the surface more prone to warping and uneven heat transfer.
- Check underneath and around the plate edges periodically for carbon buildup near burner ports, and have it professionally cleaned out if you see heavy buildup you can't reach with routine scraping.
Good cleaning habits keep a healthy griddle healthy. They won't correct a burner that's failing or a thermostat that's reading wrong.
When Uneven Cooking Means a Service Call
A little variation across a large plate is normal. It's time to call for service when:
- The same spot is consistently cooler or hotter no matter how long you let the griddle preheat.
- You're adjusting the thermostat dial up or down just to compensate for one zone, rather than setting it once and trusting it.
- You notice visible warping, pitting, or a plate that rocks slightly instead of sitting flat.
- A burner is slow to light, won't stay lit, or makes popping or hissing sounds.
- Cook times for the same item have gotten noticeably less consistent over the past few weeks.
Any of these can mean lost product, inconsistent plating, and more time babysitting the line than you should have to spend. Catching a burner or thermostat issue early is usually a smaller job than waiting until the unit fails during a rush.
Call Commercial Service Company
Commercial Service Company has been servicing kitchen equipment for businesses across central Arkansas since 1976, including griddles, burners, and thermostats in restaurants, grocery delis, and foodservice kitchens throughout Little Rock, Conway, Benton, Bryant, Maumelle, Jacksonville, Searcy, and Russellville. If your griddle is cooking unevenly and cleaning hasn't solved it, give us a call at 501-548-2374 and we'll get a technician out to diagnose it properly.