My flames are burning yellow

My flames are burning yellow

The color of a burner flame is determined by how the propane is mixing with oxygen. It’s common to see flames burning blue, but if they aren’t, it doesn’t always mean that something is wrong. Depending on elevation and the size of air gates, flames might burn yellow. Unless the griddle isn’t reaching a high temperature, or you have two burners with different flame colors, this isn’t something to be concerned about.

If your griddle isn’t reaching temperature or one burner has a different flame color from the rest, there is likely something obstructing how the propane is mixing with oxygen in your burner. In most cases, the obstruction is something caught in your burner tube. You can unscrew your burners from your griddle and remove them for cleaning. Clean the outside or the tube with a soft bristle brush (do not use a wire brush).

For the inside of the burner tube, you can run a narrow bottle brush or wire bent into a small hook through the length of the tube, or blow it out with compressed air.

Here's a video explaining how to clean your burner tubes:


Once clean, reinstall the burners, ensuring that the fuel jet at the end of the valve is inserted into the end of the burner tube.

If you have a 36” griddle with adjustable air gates, you can also try adjusting your air gates. At the front of the burner tube (right behind your control panel), some 36” griddle burners have a shield that can be adjusted to change the oxygen flow into the burner tube. 

Here's a video on how to adjust your air gates:


If this doesn’t resolve the issue, or you need additional support, submit a support ticket with the live chat or leave a message feature so we can assist you. If you haven’t already, please make sure to register your griddle to activate your warranty.

    • Related Articles

    • The flame on my griddle is low or isn't producing enough heat

      If the flame on your Blackstone griddle is low or is not producing the heat that you'd expect you can try the suggested troubleshooting below for your type of griddle. Griddles with regulators that connect to bulk (20-pound) tanks: Most likely there ...
    • My griddle top is rusting

      Rust can form on your griddle surface if the steel is able to interact with oxygen and water. This is also known as oxidation. The oxidation process can happen if there is a break or fault in your griddle seasoning or if water is able to sit on your ...
    • My Regulator is Freezing

      If a regulator freezes, it will stop functioning correctly and you’ll likely experience low to no gas flow. There are two major factors that influence regulator freezing. First, if liquid propane is able to flow through your regulator (typically ...
    • Getting your griddle ready for summer

      If you haven't used your griddle for a couple months, there are a couple items you should check over to make sure your first cook of the season goes smoothly. Whether you had put your griddle away for winter, or it had been in storage awaiting your ...
    • Why do I need to season my griddle?

      Just like a cast iron skillet, with some care and maintenance your griddle top will last you a very long time. The first major step is seasoning. A proper seasoning will not only provide your griddle top with a natural stick resistant surface, but it ...