Bragg planes carry information about the unit cell dimension, atomic positions, structural change, and level of crystallinity. The fading intensity and displacement of the {110} Bragg plane in the ED pattern reveal the stability of the overall ZIF-8 unit-cell structure. However, this does not reflect the stability of the pores, pore apertures, or gates, which are crucial for ZIF-8's applications. The interconnected gates with specific aperture sizes are vital for gas adsorption and gas separation . The presence of the {431} Bragg plane in the ED pattern indicates that ZIF-8's pore aperture remains intact. Thus, various Bragg planes should be examined to assess the structural stability of ZIF-8 under different temperatures and imaging conditions.