How do I get spoiled milk smell out of my couch?
How do I get spoiled milk smell out of my couch? Liberally cover the affected area with baking soda. Let it sit for up to three days as it does its work. Vacuum up the baking soda and wait a few days to see if the smell comes back. If it does, retreat it with baking soda, and use a soft-bristled brush to work the powder deep into the fibers.