Link for those interested. Presto 01781 23-Quart Pressure Canner and Cooker https://www.amazon.com/dp/B0000BYCFU/ref=cm_sw_r_cp_api_i_uja-Eb3WQQ3QR
This! A cheap Presto canner (23 quart) is a great start. If you've got a bit more budget get him a nice All American one (21.5 or 25 quart). Both are great for sterilizing all sorts of things he will be using. Example links for Amazon below.
Presto 01781 23-Quart Pressure... https://www.amazon.com/dp/B0000BYCFU?ref=ppx_pop_mob_ap_share
This is the one I use to sterile grain spawn.
here is the one Im getting … I didn’t know there was a newer version. I just have a regular stovetop so don’t need anything too fancy but I do need something that can PC more than my instapot- type PC, which isn’t very big at all