I made a very large batch of vadouvan, basically a curry-like onion sauce (see my post under this topic). I am drying it in the oven at 220 because I want to take it to a very crispy stage as I want to put it through a blade coffee grinder to turn it into a powder that I can store and use in sauces as needed.
I cannot get my convection to kick in at low temperatures

Also, because of the sugars in the onions, i don't want to risk burning it at higher temperatures.
I have been drying it for 4 hours so far but it still has enough moisture that it becomes a little gummy in the grinder.
Any suggestions as to how long I can expect this to take
Thank you
