Garden experts have identified an unexpected baking cupboard staple that can help remove stubborn rust from outdoor furniture, eliminating the need for expensive cleaning products. According to the team at LightingLegends.com, black treacle—a thick, dark syrup commonly used in baking—can break down corrosion that has built up on metal tables and chairs over time.
Rust is a frequent problem during warmer months as garden furniture is exposed to rain, humidity, and moisture. Over time, water and oxygen wear away protective coatings on metal, allowing rust to develop and spread. While light rust can often be removed with a wire brush or abrasive sponge, more severe corrosion may require additional help to loosen it before scrubbing.
How Black Treacle Works Against Rust
Jon Saeed from LightingLegends.com explained that acidic substances are among the most effective rust removers. "Things that contain acids are generally the best cleaning agents for this issue as acidity is what helps break down the rust, making it easier to scrub away," he said. "Surprisingly, treacle works a treat, but it tends to work best for furniture that you are able to dismantle and soak."
For homeowners who cannot take their furniture apart, Saeed recommends using a citric acid paste instead. "If you can't dismantle your furniture then creating a thick paste with citric acid is a better option," he added.
Step-by-Step Rust Removal with Black Treacle
For cast iron or steel furniture, the experts suggest mixing one part black treacle with eight parts warm water and stirring until fully combined. If possible, remove the rusty component from the furniture and fully submerge it in the solution. Depending on the severity of the rust, leave it to soak for anywhere between two days and a week.
Once soaked, scrub away the loosened rust using a wire brush or abrasive sponge. Then wash the item thoroughly and dry it completely. Ensuring furniture is fully dry after cleaning can also help prevent rust from returning, allowing outdoor tables, chairs, and benches to stay in better condition throughout the summer months.
Saeed noted, "Rust on garden furniture can be a real nuisance and can instantly make chairs, tables and benches look old and unclean. Whether or not it's easy to clean will depend on how long it's been there for and how much of it there is."
