Will be baking 50 potatoes of medium size in a convection oven. I will be baking them the morning of the planned event. I would like to know how to keep them warm when I get them to the venue. There is a regular oven there.
You can bake the potatoes as usual. Just put the potatoes in the oven at 180 degrees F (82° C) as soon as you arrive. This temperature should keep the potatoes warm without overcooking them.
If you think that you will need to keep potatoes warm for more than 4 hours, you can leave them “slightly underdone”, as you mentioned before.
Important: do not cover the potatoes.