It depends. For new ovens, it’s best to run a few empty cycles to prepare the oven for use and to keep any manufacturing byproducts from entering your food. But if your oven is smoking due to a few burnt pieces of old food, then it probably won’t hurt to eat it. If there’s a lot of smoke, then your food probably won’t taste good, even if it might not be harmful to consume.

It is generally not safe to live in a house with smoke damage, as even minor damage can pose long-term health hazards and structural risks. While it might seem safe temporarily depending on the severity, you should relocate if there is major damage or visible soot. Smoke smells and residue contain dangerous particulates and chemical compounds, including carcinogens, that are hazardous to breathe and can cause respiratory issues. These signs of damage are not always visible but can have dangerous short-term and long-term effects on your health, belongings, and your home's structural materials. You should not stay in the house until a trained professional from a smoke remediation or restoration company has assessed the damage and determined it is safe to return. Your insurance company may cover the cost of alternative housing while the professional work is completed.

In many cases, professionals can completely remove certain types of smoke damage from walls and ceilings, but it’s only possible if the damage is minor. For more extensive damage from major fires, you’ll likely need to replace the damaged materials entirely. Some items, like upholstered furniture, are much trickier to clean and might need to be replaced even if the smoke damage is minimal.

You’ll know you have smoke damage if you notice a lingering smoky odor, see soot or residue, or spot any discoloration of surfaces in your home. If you have any kind of house fire, always assume you have smoke damage and hire a professional who deals with smoke damage to assess the extent of the damage and restore your home to its pre-fire condition.