If you repair a piece of antique furniture using newly fabricated wood, the new wood won't match the old wood. As time goes by, wood goes through a process called aging, which is how it gets a weathered look. Placing new, unaged wood next to wood that has already aged will create a contrast of mismatched colors. Before placing new wood next to old wood, age it with baking soda. Using baking soda on new wood gives it a weathered appearance that should resemble the look of older wood.
Fill a bucket with 1 lb. of baking soda. Add 1 gal. water. Mix the water with a spoon until the baking soda dissolves.
Brush the solution onto the wood with a paint brush. Coat the entire surface of the wood.
Lay the wood in direct sunlight for five hours.
Rinse the wood with water. Let the wood dry.
Repeat until the wood is aged to the color and look for your desire.