Is the coffee colour stained?
No, the coffee colour is actually achieved by a carbonisation process. Carbonisation is the pressure heated treatment that changes the natural colour to the coffee colour. The length of the treatment darkens the sugar compound within the fibres of the bamboo. The colour is impregnated into the bamboo. This means that no matter how many times you re-sand the floor (typically every 5 years) the colour remains the same.