The phrase "to rinse with warm water" means to immerse something in a container filled with warm water and then gently move or agitate it to remove any dirt, debris, or residue. This process is often used before cooking foods like fruits and vegetables, as well as for cleaning objects such as jewelry or delicate items. The warm temperature of the water helps to soften any grime that may be on the surface, making it easier to remove during the rinsing process.