Constructed from Red Alder American Hardwood. It has long been valued as a wood for cutting boards because it has naturally occurring tannic acid in higher levels than other hardwoods and tannic acid helps to prohibit the growth of bacteria in the wood. Alder is a natural hardwood and will not dull or nick fine cutlery. In color, Alder is a warm reddish-brown with a clear, tight grain. However, as a natural resource some color and grain variations will occur.