Same experience here: this board[0] was hand-placed and soldered in a toaster oven by essentially opening the oven door when peak reflow temperature of the paste I was using was reached.
Additional aside- I very much prefer Loctite GC paste: it has a non-refrigirated shelf life of 6 or 12 months (however, it seems fine to me even a year past expiration date)
+1 for Loctite GC paste, used it professionally for prototyping and it has always worked well with crude toaster reflow.
Still stuck on hot air and Mechanic paste at home.
0: https://linx.wot.lv/bvcoyurf.jpg