Outdoor seating has become a popular feature for restaurants, but it significantly impacts their choice of powdered sugar for desserts. Weather conditions like wind and humidity can cause powdered sugar to dissolve or blow away, leading restaurants to opt for coarser or more durable sugar varieties. Additionally, outdoor presentation matters—finely powdered sugar may clump in humid air, ruining the visual appeal. Some establishments even use sugar alternatives or protective covers to maintain quality. Ultimately, the decision balances aesthetics, practicality, and customer experience under open-air conditions.