COSHH guide
COSHH assessment for oven cleaner
Most oven cleaners are strongly alkaline, containing sodium or potassium hydroxide (caustic soda or caustic potash). They're designed to dissolve baked-on fat, and they can do the same to skin and eyes.
Key hazards
- H314: causes severe skin burns and eye damage
- Spray mist irritating the nose, throat and lungs
- Aerosol versions: extremely flammable aerosol and pressurised container risks
- Burns that may not be felt straight away
Typical controls
- Use gel or foam products applied with a brush rather than sprays, where possible
- Clean ovens when cool and switched off, with good ventilation or extraction running
- Chemical-resistant gauntlet gloves and goggles or a face shield
- Keep aerosols away from heat and naked flames
- Store securely, upright, away from acids and food
First aid basics
Eyes: rinse immediately with plenty of water for at least 15 minutes and get urgent medical help. Skin: remove contaminated clothing and rinse thoroughly. Follow section 4 of your product's SDS.
Questions
Is a professional oven cleaner different from a household one?
Professional products are often stronger and may need extra controls. Always assess the actual product you use from its SDS.
Do staff need training?
Yes. Anyone using oven cleaner should know the hazards, the PPE to wear and what to do if they get it on their skin or in their eyes.
Important
EasyCOSHH is a tool, not professional advice. You must check each assessment against the supplier's Safety Data Sheet and your actual work, adapt it and sign it off. For high-risk substances (carcinogens, asbestos, lead, respiratory sensitisers such as isocyanates) use a competent person. We are not affiliated with or endorsed by HSE.