Depends on what you are doing with the results of it.
Some of the coffee and more so food I am looking playing with gear in the order of 0.1C accuracy or better so I need to be able to get well under that for testing and for certainty so a casual check with a 3 or 4 1/2 digit meter and a K type thermocouple won't cut it. Hence some Temperature Cal gear better RTD's calibrated meters and a bit further into the rabbit hole.
Playing with most stuff on the bench an 20 Mhz scope and a $50 meter would still do me like it did for a long time and would do 90+% of all work any of us need for home use but part of it is why we are here I guess
TEA is a bottomless cup