Sensory science should definitely leveraged to identify how to attract more consumers to buy.
Smell definitely plays a role, and its very important to understand what dials up or down consumer preference.
In particular, there is a methodology called preference mapping, which helps understand what sensory cues have highest impact on consumer prefence, which i would particularly recommend for this purpose.

Obviously, there are numerous strategies these enormous corps practice to get us in their entryways and put their burgers in our stomaches.
FRAGRANCE MARKETING DONE RIGHT
Cinnabon
Cinnabon fragrance promoting | Shopify Retail blogThis claim to fame natural way of life deliberately chooses areas for their stores where aromas get caught with the goal that the possess a scent reminiscent of their new cinnamon rolls can wait.
Falling off the metro, you hope to experience a ton of odors, yet not normally one as satisfying as a crisp cinnamon bun. It's a joy to stop at a station where an establishment is set up and since the greater part of the other waiting odors in the underground are off-putting, the Cinnabon shops are particularly tempting. Furthermore, consistent with the science, the Cinnabon smell invokes recollections of that pastry shop appropriate over the road from my youth schoolyard. Obviously, I don't avoid buying from Cinnabon all that frequently when I occur crosswise over one.
FAST FOOD COMPANIES TAKE ADVANTAGE OF OUR DESIRE FOR CONVENIENCE
As per a 2006 Eating Patterns In America report discharged by The NPD Group (in the past National Purchase Diary), Americans esteem comfort over wellbeing. This implies they'll intentionally burn through cash on shabby to-make, fat-loaded sustenance things that are without nourishment, as long as they are top notch and simple to procure.
Helpful bundling and drive-throughs are a portion of the traps fast food eateries utilize.
Advantageous bundling and drive-throughs are a portion of the traps fast food eateries utilize.
So it's nothing unexpected that the straightforwardness and comfort of fast food now goes past things like KFC's "Go Cup," which is close overpowering when you're eager and tied for time. There are more than 200,000 drive-through eateries in America, settling on eating decisions as straightforward as, well, a pit stop. In 2011, 57 for each penny of visits made to fast food ground sirloin sandwich joints were managed without venturing out of the auto. Greedy has never been so helpful.
What's more, fast food joints don't simply take into account a want for accommodation — they all the while heighten that want, as well. A progression of social brain research examines, as of late condensed in the New York Times, found that simply considering fast food made individuals more rushed, more anxious and more averse to gradually appreciate encounters. "While the pervasiveness of fast food is without a doubt driven by customer interest for moment delight," thought of one of the investigations' creators, "it might likewise assume a part in fueling that very anxiety — and not only for sustenance, but rather in numerous aspects of our lives."
FRAGRANCE MARKETING MAKES THEIR PRODUCTS VIRTUALLY IRRESISTIBLE
Has the aroma of crisped McDonald's fries at any point tempted you to stroll through those brilliant curves? All things considered, your nose is the casualty of an extremely computed promoting ploy.
The fragrance of new bread heating can trigger appetite throbs.
The fragrance of crisp bread preparing can trigger craving pangs. Source:ThinkStock
Regardless of the possibility that you didn't see yourself as eager, when your nose gets a whiff of an enticing sustenance like fries or newly prepared Cinnabons, it tells your cerebrum, "I noticed something delectable." Your body, accordingly, builds the creation of ghrelin, which can empower your hunger. Your mind at that point peruses this as appetite, and off you go — following your nose to the trail of sustenance that is nutritiously deficient.
Cinnabon bread shop chains, for instance, keep the stoves close to the front of their stores to draw clients inside (on the off chance that you've at any point been to a shopping center, this is likely the sticky sweet aroma that penetrates your nasal sections). At Cinnabon, representatives will warm sheets of cinnamon (sans the "bon") to continue everything noticing new. Panera Bread Company intends to reassign shifts at the lion's share of their areas to ensure their stores are transmitting the aroma of crisply prepared bread at crest utilization hours, the Wall Street Journal revealed in May.

Three major parameters of any food that affects the consumer behavior (Cognition) are color or look (visual), Smell and taste. For selecting any food color and smells plays very important role in attracting consumers towards the foods. Most of the successful restaurant has signature smells that attracts consumers everyday. For some foods smell, consumer get addicted to it. Smells plays a very important role in recognizing a particular brand. Consumer use smell of a particular brand as a descriptor while referring it to friends and family.

Therefore, understanding sensory science in food industry will definitely help in pulling and building consumer opinion for a brand and make the same popular.