How do you darken teak wood?

To darken teak wood, you can use a wood stain or oil, such as Danish oil or tung oil, which enhances the natural color while providing protection. Alternatively, applying a mixture of vinegar and steel wool can create a darkening effect due to the reaction between the iron and tannins in the wood. Always test on a small, inconspicuous area first to achieve the desired shade. Finally, finish with a clear protective coat to seal the color.