To clean these brushes, use a soft-bristled brush/toothbrush or cloth to remove any tangles and dirt gently. You can get them wet by dipping them in warm soapy water or distilled white vinegar, but ensure that you dry them thoroughly face down. You should not soak or fully submerge wooden, boar bristle or bamboo brushes in water as they can absorb the water and warp or break apart.