You may have seen the viral advice to burn a bay leaf at home to “purify” the air, ease anxiety, improve sleep or even boost your immune system. It sounds simple and natural, but are those claims true?
What burning a bay leaf can and can’t do
Bay leaves are wonderful in soups, stews and sauces. Some people also enjoy their warm, herbal scent. But there’s no good evidence that burning a bay leaf purifies the air or improves your sleep, focus, immunity or health.
If a calming ritual helps you unwind, that feeling can be real. It doesn’t mean the smoke itself is providing a health benefit, though. And a pleasant smell is not the same as cleaner air.
Does the smoke clean the air?
No. Smoke is made up of tiny particles and gases. South Africa’s Department of Health lists burning and other combustion as sources of indoor pollutants. Particles in the air can contribute to symptoms such as coughing and wheezing.
Smoke can also irritate your eyes and airways. People with asthma or other heart or lung conditions, as well as children and older adults, may be more vulnerable to smoke’s effects.
That’s why the phrase “100% natural and chemical free” can be misleading when it appears alongside instructions to burn something. Natural materials still produce smoke when they burn.
What about keeping insects away?
Bay leaves are sometimes used as a pantry insect deterrent, but that doesn’t prove that burning them will reliably repel insects around your home. The viral graphic makes that promise without showing evidence.
A safer way to enjoy bay leaves
Use bay leaves to add flavor to food, and remove whole leaves before serving. If you like the fragrance, you could place dried leaves in a small bowl or sachet but don’t expect them to treat a health problem or clean your air.
If you choose to burn leaves for the scent, keep them in a fire-safe dish, stay with them, ventilate the room and make sure they are completely out before leaving. Avoid inhaling the smoke, especially around anyone with asthma or other breathing problems.
The takeaway: Bay leaves are lovely in the kitchen, but burning them is not a proven health treatment or air purifier. When it comes to your home’s air, less smoke is better.
This article is for general information and is not medical advice.
