G'day. The methods for preserving ginger do vary yours looks OK for all jam making or pot cooking here is a tip it stops the bum from burning and keeps the ingredients shape especially for jams. Just place the pot in the oven at about 150°c or 300°f you can use higher temps for quick cook dishes, like steaks bacon fish etc. This has come more imperative for me as I get more forgetful; things may be over cooked at times but at least they are still edible and rarely do you have burnt pans. Regards Pete Ward