@Margaret Pilgrim Thanks for sharing your traditional simple method and kudos for the educational experience you are giving the grands. I grew up in the 70's with the now considered vintage Salton appliance. I wanted one but I went old school as you did. I am not particularly fond of the "Greek" firm yogurt so the other method works for me.
I read about White Moustache in New York (yes I know home of Chobani) and was taken with their style. No opportunity yet to taste it but the descriptions linger. https://whitemoustache.com @Smithy check out what they do with the whey.