Short answer: Oven smoking when turned on can result from residue or spills inside the oven heating up; it’s typically not normal and should be addressed to prevent potential fire hazards. Regular cleaning and proper maintenance can help resolve this issue.

When you turn on your oven and it starts to smoke, it can be both alarming and frustrating. The appearance of smoke in your oven is not only an inconvenience but may also indicate underlying issues that need prompt attention. In this discussion, we will delve into the various factors that can lead to your oven emitting smoke when it’s turned on. Understanding the causes behind this phenomenon is the first step in addressing the problem and ensuring a safe and efficient cooking environment. Whether you have an electric or gas oven, identifying and rectifying the source of the smoke is crucial for both your cooking experience and overall kitchen safety.

Why Does My Oven Smoke When I Turn It On?

Smoke from oven after turning on
Smoke coming from the oven

If your oven is smoking when you turn it on, it can be due to several reasons. Here are some common causes and steps you can take to address the issue:

  1. Residue and Spills: The most common reason for smoke is leftover food residue or spills from previous cooking. When you turn on the oven, this residue can heat up and produce smoke. To address this, you should clean your oven thoroughly. Remove any visible food debris or spills from the oven floor and walls.
  2. Self-Cleaning Mode: If you recently used the self-cleaning mode, it can produce a lot of smoke as it burns off accumulated food residue. This is normal during self-cleaning cycles, but make sure the smoke dissipates completely after the cycle is finished.
  3. Drippings on the Heating Element: Sometimes, food or cooking oils can drip onto the heating elements at the bottom of the oven. When you turn on the oven, these drippings can smoke as they burn. To fix this, allow the oven to cool down and then clean the heating elements if possible.
  4. Cooking at High Temperatures: If you’re cooking at a high temperature and there’s food or grease inside the oven, it can smoke. Lower the temperature and give the oven time to burn off any residue before increasing the heat.
  5. Faulty Components: In rare cases, smoke can be caused by faulty components such as a malfunctioning heating element or an electrical issue. If the smoke continues even after cleaning and adjusting cooking temperatures, you may need to consult a professional technician to inspect and repair your oven.
  6. Foreign Objects: Occasionally, foreign objects like oven mitts, plastic utensils, or food packaging may have accidentally fallen onto the oven’s heating element. Check the oven interior for any foreign objects that may be melting and producing smoke.
  7. Improperly Seasoned Cast Iron Cookware: If you’re using cast iron cookware in the oven and it’s not properly seasoned or has excess oil, it can smoke. Make sure your cast iron cookware is seasoned correctly.

Why Does My Oven Smoke When Roasting?

If your oven is smoking when you’re roasting food, there are several potential reasons for this issue:

  1. Residue and Spills: Similar to when you turn on the oven, smoke during roasting can be caused by food residue or spills from previous cooking sessions. These residues can heat up and produce smoke when the oven is in use. Make sure to clean your oven thoroughly before roasting to prevent this issue.
  2. Drippings from the Food: When you’re roasting meat or poultry, fat, and juices can drip onto the oven’s heating elements or oven floor. These drippings can smoke as they come into contact with the hot surfaces. To mitigate this, use a roasting pan or tray to catch drippings, or place a layer of foil on the oven rack below the roasting food to catch any spills.
  3. High Cooking Temperatures: Roasting often involves cooking at higher temperatures, which can exacerbate any residue or drippings in the oven. Lowering the cooking temperature slightly or using a lower rack position can help reduce smoking while still achieving the desired roast.
  4. Excess Seasoning or Oils: If you’ve applied excessive seasoning or oil to the food you’re roasting, it can drip onto the oven’s heating elements or surfaces, causing smoke. Be mindful of the amount of seasoning and oil you use.
  5. Dirty Oven Racks: Smoke can also occur if your oven racks are dirty. Food residues on the racks can heat up and smoke during roasting. Clean the oven racks regularly to prevent this issue.
  6. Improper Pan or Tray: Using a pan or tray that’s too small for the food being roasted can lead to drippings and spills that create smoke. Ensure your roasting vessel is appropriately sized to accommodate the food and any potential drippings.
  7. Excessive Openings or Door Gasket Issues: If the oven door doesn’t seal properly or if there are gaps or damage in the door gasket, smoke may escape during roasting. Check the door seal and gasket for any issues and replace them if necessary.
Opening oven door
Excessive door opening
  1. Burning Residue on Cookware: If you’re using cookware inside the oven, like a baking sheet or a roasting pan, residue on these items can also smoke during roasting. Make sure your cookware is clean before placing it in the oven.

Why Is My New Oven Smoking?

If your new oven is smoking, it can be concerning, but there are several common reasons why this might occur, even with a new appliance:

  1. Manufacturing Residue: Ovens often have a protective coating or manufacturing residue left over from the production process. When you first use the oven, this residue can burn off, causing smoke. This is typically harmless and should dissipate after the initial use. It’s a good idea to run the oven at a high temperature (around 400-450°F or 200-230°C) for about 30 minutes to help burn off any manufacturing residues.
  2. Newness: Sometimes, a new oven may emit a burning smell or smoke when it’s first used simply because it’s new and hasn’t been “broken in” yet. This can be due to various components, such as the heating elements and insulation, getting acclimated to the heat.
  3. Packaging Materials: Check to make sure that there are no packaging materials, stickers, or plastic pieces left inside the oven. These materials can melt or burn when the oven is turned on, producing smoke and unpleasant odors.
  4. Leftover Protective Coatings: Some ovens come with protective coatings on the interior surfaces, particularly if they have a self-cleaning feature. If these coatings are not properly removed during installation, they can smoke when the oven is heated. Review your oven’s manual for guidance on removing any protective coatings.
  5. Residue from Previous Testing: Manufacturers often test ovens before shipping them, and there may be some residue from these tests. Cleaning the oven thoroughly before use can help eliminate any lingering residue.
  6. Faulty Components: While rare, it’s possible that there may be a defect or issue with one of the oven’s components, such as a malfunctioning heating element or control panel. If the smoking persists and none of the above explanations seem to apply, contact the manufacturer’s customer service or a professional technician to assess and address the issue.

Can A Smoking Oven Cause A Fire?

Yes, a smoking oven can potentially cause a fire if the source of the smoke is not addressed. While ovens are designed to handle high temperatures and cooking processes, smoke can be an indicator of an issue that needs attention. Here are some ways a smoking oven could lead to a fire if not addressed:

  1. Food or Grease Buildup: Excessive food or grease buildup inside the oven can produce smoke. If this residue reaches a high enough temperature, it can ignite, leading to a fire.
  2. Drippings: Drippings from roasting meats or other foods can fall onto the oven’s heating elements or interior surfaces. If these drippings ignite due to high temperatures, they can cause a fire.
  3. Foreign Objects: If foreign objects, such as oven mitts, paper towels, or plastic utensils, are accidentally left in the oven and come into contact with heating elements or hot surfaces, they can catch fire and produce smoke.
  4. Faulty Components: Smoking can also result from malfunctioning oven components, such as a malfunctioning heating element or electrical issues. In some cases, these malfunctions could lead to a fire if not addressed promptly.

How To Avoid Oven Smoking?

To avoid your oven from smoking while you cook or bake, follow these tips:

  1. Regular Cleaning: Keep your oven clean by regularly removing food debris, grease, and spills from the interior. Clean the oven racks, walls, and floor to prevent residue from burning and producing smoke. Use oven cleaner or a mixture of baking soda and water for stubborn stains.
Cleaning oven after use
Cleaning oven
  1. Use Oven Liners or Foil: Place a non-stick oven liner or aluminum foil on the oven rack below your food to catch any drips or spills. This makes it easier to clean up and prevents smoke caused by food drippings.
  2. Proper Cookware: Use appropriate cookware and roasting pans with high sides to contain any liquids or fats that might drip during cooking. This helps prevent drippings from reaching the oven’s heating elements and causing smoke.
  3. Monitor Food While Cooking: Keep an eye on your food while it’s cooking to prevent spills, boil-overs, or excessive splattering. If you notice any spills, address them promptly to avoid smoke buildup.
  4. Use a Meat Thermometer: When roasting meat or poultry, use a meat thermometer to ensure it’s cooked to the desired temperature. Overcooking can lead to excess drippings and smoke.
  5. Reduce Cooking Temperature: If you’re experiencing smoke while roasting or baking, try lowering the cooking temperature slightly. This can help prevent excessive smoke without compromising the cooking process.
  6. Avoid Excessive Seasoning and Oil: Be mindful of the amount of seasoning, oil, or marinade you use on your food. Excessive oil or seasonings can lead to smoke when they come into contact with hot surfaces.
  7. Check for Foreign Objects: Before preheating the oven, check the interior for any foreign objects or materials that might have accidentally been left inside. Remove them to prevent smoke or fire hazards.
  8. Properly Season Cast Iron Cookware: If you use cast iron cookware, make sure it’s properly seasoned to prevent it from smoking during use.
  9. Follow Recipe Guidelines: When following recipes, pay attention to recommended cooking temperatures, cooking times, and instructions. This can help you avoid overheating your oven and generating unnecessary smoke.
  10. Regular Maintenance: Schedule periodic maintenance for your oven, including inspections by a professional technician. Malfunctioning heating elements or electrical issues can lead to smoke, so addressing these problems promptly is essential.


Is electric oven smoke normal?

No, smoke in an electric oven is not normal. It usually indicates an issue, such as food residue, spills, or a malfunctioning component.

Why is my top oven smoking?

Smoking in the top oven can be caused by food residue or spills burning off when the oven is heated. Cleaning the oven thoroughly can help resolve this issue.

Should I be concerned if my oven is smoking?

Yes, you should be concerned if your oven is smoking. While it may not always be a serious issue, it’s essential to investigate the cause and address it to prevent potential fire hazards.

Why does my gas oven smoke while preheating?

Smoke in a gas oven while preheating can result from food residue or spills burning off the oven’s heating element or interior surfaces. Cleaning the oven and inspecting for any issues can help alleviate this problem.


Smoking in an oven, whether electric or gas, is typically not normal and can indicate issues such as food residue, spills, or faulty components. It’s essential to address the cause promptly to ensure safe and efficient cooking. Regular cleaning, proper cookware, and occasional maintenance checks can help prevent smoking in ovens, reducing the risk of fire hazards and ensuring a trouble-free cooking experience.

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