In the manufacturing of Autoclaved Aerated Concrete (AAC), achieving perfect structural integrity is a delicate chemical balance. This article explores the often-overlooked role of aluminum paste in preventing—or causing—block cracking. By examining the critical synchronization of gas evolution with slurry thickening, the impact of hydrophilic dispersion, and seasonal temperature variations, we provide actionable diagnostic strategies for plant engineers to optimize their gas-generating agents and significantly reduce production waste.