McCain is bringing the aroma of baked potatoes to bus stops as part of a £1m push supporting the launch of its microwaveable ready-baked spuds.

Bus shelters in 10 UK cities are next week being fitted with a 3D poster featuring a jacket potato. When a waiting passenger pushes a button on the display, it releases the smell of an oven-baked spud.

McCain said it took boffins three months to accurately recreate the smell of the product.

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