Can Baking Soda Clean Outdoor Cushions? By On 28 February 2024 in A Can Baking Soda Clean Outdoor Cushions? Baking soda is effective for cleaning and deodorizing outdoor cushions. Sprinkle it on, let it sit for 15-20 minutes, then scrub off with a damp brush and rinse. Did you find this FAQ helpful? 0 0