Abstract: To determine the appropriate equilibrium time of cased cut tobacco after changes in storage conditions for improving production efficiency, equilibrium tests were conducted on cut tobacco under different storage environments, and the heat transfer characteristics of different types of cut tobacco were compared and analyzed. Extreme environmental temperature scenarios in winter and summer were simulated using a low-temperature freezing chamber and a high-temperature and high-humidity chamber. Multi-point real-time monitoring of temperature and humidity inside sealed cut tobacco cases was achieved using digital sensors to track the variations of temperature and humidity under the different storage conditions. The results showed that: 1) After equilibrated in a low-temperature environment (approximately ‒20 ℃, relative humidity approximately 55%), cut tobacco strips, expanded stem strips, and expanded cut tobacco strips were transferred to a storage room with constant temperature and humidity (approximately 26 ℃, relative humidity approximately 60%), and the time required to reach the temperature equilibrium was 51.50, 38.25, and 46.25 h, respectively, while for those equilibrated in a high-temperature environment (approximately 42 ℃, relative humidity 75%), the corresponding time were 31.50, 24.00, and 28.75 h, respectively. 2) During the equilibrium process, uneven distributions of temperature and humidity in the cased cut tobacco were observed, showing the surface layer reaching equilibrium faster than the interior. Compared with temperature, relative humidity reached equilibrium faster under the low-temperature conditions. Cut tobacco strips needed relatively more time to warm up, while expanded stems and expanded cut tobacco strips needed relatively less. 3) The physical indicators of cut tobacco including filling value, the proportions of integral tobacco strands and short tobacco strands, and moisture content, showed minor changes before and after the temperature equilibria. This study provides operational guidance for the stable and efficient quality control of nonlocally supplied cut tobacco.