<human>: Goal: How do you remove odors from refrigerator?

Which of the following methods is more reasonable for accomplishing this goal?

OPTIONS:
- Deodorize with baking soda. Leave an closed container of baking soda in the fridge to absorb refrigerator smell for at least 24 hours.
- Deodorize with baking soda. Leave an open container of baking soda in the fridge to absorb refrigerator smell for at least 24 hours.
<bot>: Deodorize with baking soda. Leave an open container of baking soda in the fridge to absorb refrigerator smell for at least 24 hours.