Countertop oven for spent grain snacks and small-batch baking?

I brew small batches in my Reno kitchen and I’m trying to get more use out of my spent grain instead of composting all of it. I’ve been drying grain in my regular oven on low, but it ties up the whole oven for hours and the temperature swings more than I’d like. I’m considering a countertop convection oven with air fry capability, partly for drying grain and partly for baking spent-grain crackers and dog treats while the main oven stays free on brew days.

My concern is whether a countertop unit holds a low enough steady temperature for drying without scorching, and whether the fan is strong enough for even drying across a full tray. I also worry about capacity since I usually process a few pounds at a time. I found some third-party information online about one model’s specs, but real-world drying behavior is a different story.

Anyone here using a countertop oven for spent grain or other brewing-adjacent kitchen tasks? How does it handle long low-temperature runs?

Update after looking around more - Breville BOV900BSS Smart Oven Air Fryer Pro Review kept coming up for the low-temperature range and convection fan. Still not sure a countertop unit will hold steady enough for a few pounds of grain without scorching, but I’m leaning toward giving it a try.

Consider buying a food dehydrator instead of a countertop oven. They max out at a relatively low temp but the temp is very stable. A large dehydrator might be able to accommodate a couple pounds at a time.