Ten restaurants and bars in Finland conducted an interesting test of the effect of scent on product sales. As reported by Reuters, five locations used only visual ads for a specific liquor brands while the other five used the same ads but added scent diffusers. The aroma being broadcast were that of the advertised liquor.
The results were convincing, bars with scent-visual ad resulted in 79% growth in sales, while places with only the visual ad, sold 11% more than during normal periods.
Read the full piece here – http://www.neurosciencemarketing.com/blog/articles/scent-nearly-doubles-sales.htm#sthash.WEpzZMNE.dpuf