Timber Care came and experimented with a number of stains. We finally settled on using the darkest stain for our kitchen bench tops and floors, which is made from vinegar and steel wool stain.
 
For the eco-plywood cabinets, Timber Care used a white diluted concentrate as an undercoat to ensure the oil wax did not yellow the colour of the wood.
After the stains, hard wax oil is applied to make the wood waterproof. This is particularly important for the bathroom, which has wooden benches. Unlike varnishes, the hard wax oil does not need to be sanded to be renewed.