E943a Butane

What is Butane (E943a)?

E943a, or butane, is a hydrocarbon gas used as a propellant in aerosol food sprays, including non-stick cooking sprays. It is also used in some food packaging to displace oxygen and prolong shelf life. Butane is odorless and colorless, making it useful in preserving the freshness of certain products.

Why do I have an intolerance?

Intolerance to butane can arise from its chemical properties. Although exposure in food products is minimal, some individuals may be sensitive to trace amounts of the gas, leading to symptoms like headaches, nausea, or respiratory issues. Such reactions are typically related to inhalation or ingestion of aerosolized particles from cooking sprays.

What can I do about it?

To minimize exposure, avoid using aerosol cooking sprays or food products that list butane (E943a) as an ingredient. Opt for alternative cooking methods, such as using butter or oil directly, which don't require propellants. Additionally, selecting products with natural preservatives or propellant-free packaging may help.