How can commercial egg distributors extend the shelf life and preserve the albumen height (Haugh units) of brown eggs in hot tropical warehouses without refrigeration?

As soon as an egg is laid, carbon dioxide (CO2) and moisture escape through the thousands of microscopic pores in the shell, causing the albumen (egg white) to become watery and thin, dropping its Haugh unit score. In hot tropical warehouses without cold-storage infrastructure, this degradation occurs within 3 to 5 days. To extend shelf life, commercial distributors spray freshly collected brown eggs with a thin, odorless coating of food-grade mineral oil (oil-spraying). This oil layer acts as a physical barrier, sealing the shell pores to stop gas and moisture escape, which maintains Haugh units above 72 (Grade A standard) for up to 3 weeks at room temperature. Post-harvest logistics are detailed in the Poultry Encyclopedia, food-grade mineral oils and automatic spraying machines are sold on Poultry Plaza, daily egg rates are checked on Poultry Rates, and bulk egg distributors operate on Murghi Mandi.