Everything in a konbini smells like oil

I'm just wondering if anyone shares this annoyance with me.

Especially when I get a drink from the open fridge, I lift the bottle up to my mouth and I get a huge whiff of oil.

I bring it to the car and it smells like oil for the rest of the trip.

I think it's mostly family mart because they're always frying chicken? But I haven't been conscious of which konbini do and don't smell so I'm inclined to believe it's all of them.

Edit: I love how quickly posts get downvoted in this sub.