Laser powder bed fusion (LPBF), also known as selective laser melting (SLM), is emerging as a popular technique to additively manufacture titanium alloys, such as Ti-6Al-4V. The microstructure of additively manufactured Ti-6Al-4V and other titanium alloy components are widely analysed in scientific literature. However, the studies were mostly limited to final microstructures visible at room temperature, which is different from the as-solidified microstructure. The solid-state phase transformation leads to this microstructural change and effective concealability to examine the solidification-related process conditions [1-2]. Nevertheless, Burgers Orientation Relationship (BOR) allows the interrelation of the two microstructures formed at high temperature during solidification and the microstructure visible at room temperature. Thus, the parent β phase microstructure can be reconstructed from the Electron Backscatter Diffraction (EBSD) data of the room-temperature microstructure by selecting appropriate threshold angles that can simulate phase transformation between parent β phase and child α/α’ phases [3-4]. In this contribution, we examine the selection process of the appropriate threshold parameters for reconstruction of the high-temperature parent β phase as-solidified microstructure applicable to the LPBF additive manufacturing process of Ti-6Al-4V. With the successfully reconstructed as-solidified high-temperature microstructures, solidification conditions across a relatively large additively manufactured build volume are also analysed to demonstrate the potential applicability.