Scentiment introduces a new marketing channel for food retailers: measurable outdoor scent diffusion. Our system allows bakeries and cafés to project the sensory appeal of their products beyond the storefront in a way that can be tracked, tested, and optimized. We provide curated scent profiles such as fresh bread, roasted coffee, or warm pastries. We choose products that most closely match a business’s offering without requiring on-site scent capture. These scents are released through compact, weather-resistant diffusers designed specifically for outdoor use. Each device combines scent diffusion with environmental sensing and passive foot-traffic observation. This allows businesses to compare diffusion periods with changes in passerby behavior, dwell time near the entrance, and variations in sales. This results in a continuous feedback loop that shows whether outdoor scents are truly increasing conversion. By making scent deployable and measurable in outdoor environments, Scentiment opens an untapped, scalable top-funnel tool for local food retailers. Shops gain a low-cost way to strengthen street presence, differentiate in crowded locations, and influence customer behavior, while improving performance outcomes.

Most local food retailers rely on visual signage and location alone to attract passersby, even though smell is the strongest, fastest-processing sensory trigger for attention and approach behavior in the human brain. The scent of fresh bread or roasted coffee can influence decisions within seconds, but businesses have no reliable way to project these cues beyond the doorway, and no tools to measure whether scent actually drives business outcomes. Indoor scent diffusers exist, but outdoor scent deployment is imprecise, weather-dependent, and entirely unmeasured. As a result, bakeries and cafés lose out on one of their most powerful assets (the natural scent of their products) at the exact distance where it would matter most (before passersby decide to walk past or walk in). The deeper problem is that scent, despite its proven effect on attention, memory formation, and consumer approach behavior, remains untracked and unquantified. Retailers cannot test its impact, optimize it, or justify investment. Scentiment addresses this gap: the inability of small food retailers to use their aromatic appeal in a measurable, predictable way that increases foot traffic and conversion.