Kinmemai Premium rice has been officially acknowledged by Guinness World Records as the most expensive rice globally, with a retail price of about $73 per 500-gram box. This rice is produced in a remarkably limited quantity of just 1,000 boxes each year, aligning its scarcity with its high market value. The production process is meticulously designed, resembling a ritual rather than traditional agricultural methods, emphasizing a commitment to quality and exclusivity.

The creation of Kinmemai involves selecting award-winning Japanese varieties of rice that undergo rigorous testing for taste and texture. Each batch is subjected to checks for enzymatic activity, a technique used by Toyo Rice Corporation's 91-year-old president to determine the "vitality" or life force of the grain. The production focus is not solely on the grain's purity or appearance; rather, it seeks to achieve a balance among aroma, elasticity, and a natural sweetness that harmoniously coexist without overwhelming the palate.

The sensory experience of Kinmemai Premium rice is described by chefs who have tasted it as possessing grains that are "brighter than diamonds" with a silky texture and a clean, subtly sweet flavor. It is noted for not overshadowing other dishes while providing a unique culinary experience that invites exploration and appreciation, showcasing why this rice commands such a high price in the market.