7 Common Habits That Are Ruining Your Oven, According to Experts

Even if you rarely cook, dealing with a broken oven can be incredibly frustrating. While some ovens malfunction due to old age or damaged internal components, the problem might also be linked to something you’re doing without realizing it. Experts reveal seven seemingly harmless habits that could be causing harm to your oven.

Covering the Bottom with Aluminum Foil

Placing foil at the bottom of your oven may seem like a practical solution to catch spills and splashes—just toss out the foil when it's dirty. However, this is rarely the case. Often, we forget about the foil or neglect to replace it in time. Delphie Williams, senior category and product marketing manager at Hisense, warns that foil can melt during self-cleaning cycles, potentially leading to permanent damage.

Dirk Sappok, director of category management and product development at Miele USA, explains that foil can also adhere to the oven floor, causing additional damage. By the time you attempt to remove it, stubborn, baked-on spills might have bonded it to the surface.

Neglecting to clean up spills immediately is a big mistake. The longer food debris is left to bake onto the oven, the harder it becomes to remove and the less efficient the oven operates. As Delphie Williams points out, you're effectively baking the mess into the surface of your oven!

Spills in the oven aren't just tough to clean; they become a hassle when not tackled right away. Williams explains that letting them sit can lead to stubborn stains that affect the oven's cooking performance. Essentially, you're trapping food residue onto the surface during each subsequent cooking session.

That said, cleaning up spills should be done once the oven has cooled down. You definitely don’t want to risk burning yourself when the oven is still at 425 degrees. But as soon as the temperature is safe, make sure to clean up the spills without delay.

Neglecting to clean your oven properly can cause long-term issues. Williams advises that failure to regularly clean the cooktop and oven could result in wear and performance problems. This includes using harsh, abrasive cleaners on sensitive surfaces like the cooktop or control panel, which can cause scratches and irreversible damage. If you're unsure about which cleaning products are safe, consult the manufacturer’s website or reach out to customer service for guidance.

Failing to maintain a clean oven, especially the cooktop, can have serious consequences over time. Williams notes that using abrasive cleaners on surfaces like the control panel can lead to scratches and permanent damage. For the safest cleaning approach, always check the manufacturer’s website or call customer service for recommendations.

We've all attempted to cram multiple pans into the oven at once, thinking we can make everything fit. However, as Sappok explains, this is a bad move. The added weight puts unnecessary strain on the racks, and scraping pans against the oven's interior can scratch it. Instead, Sappok recommends opting for a larger tray to avoid this risk.

Trying to squeeze too many pans into the oven, especially during busy cooking sessions like holidays or dinner parties, can damage your oven. Sappok warns that the excess weight on the racks can cause strain, and pans that scrape against the oven’s interior may scratch it. Using a larger tray is a better option to avoid this.

Blocking the vents and holes in your oven is another mistake to avoid. These are critical for ensuring proper air circulation and even heat distribution, and obstructing them can result in poor performance or even potential damage to your appliance.

It may seem insignificant, but blocking the vents on gas ranges can be problematic. Williams cautions that this disruption of airflow can potentially impact the oven's performance. Similarly, obstructing the holes at the bottom of a gas oven can prevent heat from circulating properly, which can affect cooking results.

While it may be tempting to frequently check on your food, Sappok advises against opening the oven too often. Every time the door is opened, the internal temperature drops, which can affect the cooking process. To help with monitoring, some Miele ovens now feature integrated cameras that capture a high-resolution image every minute, so you can keep track of your meal directly from your phone.

If you don’t own a Miele oven, don't worry! You can still avoid unnecessary temperature drops by turning on the oven light and peeking through the window to check on your dish without opening the door.

It's easy to overlook the importance of reading the user manual, but forgetting to do so can lead to mistakes or misuse of your oven. Always take the time to familiarize yourself with the instructions for optimal performance and safety.

Neglecting to read the user manual is a common mistake. Taking a moment to go through the manual ensures you understand the oven's features and functions, helping you avoid misuse and get the best performance out of your appliance.

No matter what kind of oven you own, reading the manual is always a smart move. Williams highlights that by skipping this step, you might miss out on useful features and maintenance tips, such as the crisp function. This feature acts similarly to a broiler, helping you achieve a crispy finish on dishes. If you've lost the manual or are renting, chances are you can easily find a digital version on the manufacturer’s website.