I'm guessing the smell is on the plastic parts ... don't know if your machine has plastic parts, but I'll assume it does. Unfortunately, plastic is one of the materials that really absorbs odors - especially smoke
Wash the plastic all over using a mixture of 3 Tbs baking soda to a quart of water. Then, leave a baking soda paste all over the plastic parts as much as you can for at least 20-40 minutes. Put the machine in the bag with crumpled newspapers and some loose activated charcoal, close the bag and leave it for a few days. The charcoal and newspaper will absorb a lot of the odor. It may take several treatments....