Maximum dust mass 1 au beyond the snow line (SL) as a function of the size of the dust disk, , at the time when the disk has reached that maximum mass. Results for the Shu-type infall where R_C grows to roughly 10 au are shown in panels a₁ and a₂, while the ones where R_C grows to roughly 100 au are shown in panels b₁ and b₂. Panels with subscript 1 show the results for the temperature-independent fragmentation threshold, while panels with subscript 2 show the results for the temperature-dependent fragmentation threshold.