I don't quite get this. Why would this work? Baking side absorbs odors, so I would think it would absorb the smell of the essential oil. You can place an open bowl of baking soda in a small room to absorb smells. A bowl of vinegar kills aggressively bad smells, like skunk. But in order for these materials to affect smells, you need surface exposure.

I agree that this likely would not work.

Well, I'll try this but I think the other commenters have a good point.

I once went away in the middle of summer and returned to find the power had cut and my fridge stank of rotting meat - 2 weeks in HOT summer.

I did vinegar, bicarb ....the lot.

The only thing that finally worked was to put charcoal in a dish and then run the fridge. After about an hour, the smell was COMPLETELY gone.

Although I had already wiped every wipeable surface about 5 times with vinegar AND bicarb, separately (you can't do them together because they react, fizz and you are not left with any active agent).

I have used a variation of this. Put a cotton ball w/ perfume oil in a spice jar. Add a lid w/ holes or a muslin square tied on with twine. This works as well as I want it to work: adds a bit of scent and is easy to refresh.