Yes. Sodium bicarbonate, or baking soda, is effective at putting out fires and is used in fire extinguishers. When you’re ready to put out your fire, follow these simple steps: • Use a poker to spread out the embers and burning wood in your fireplace.  • Use a fireplace shovel to bury the embers and wood in cool ashes until all the flames have gone out.  • Cover the area with a layer of baking soda.