5.5" Wood Coffee Stirrer. Made with birch wood harvested from re-planted forests. The birch tree acts as a green manure tree by shedding nutrient rich leaves which enrich the surrounding soil. Eco-friendly birch wood is preferable to plastic and is a renewable resource. Birch wood is 100% compostable and environmentally friendly because it is a natural product and does not accumulate in the environment as waste.