The dryer has the ability to dry maize and sell it in the game's shops for more money than corn straight from the field.
Possibility of drying poppy seeds and it appears the same as in the case of corn
Anticipated update:
Add dried sunflower and sunflower drying to your bakery so you may manufacture poppy flour.
Give the bakery the option to produce poppy seed cake.
Incorporate the capability of producing sunflower seeds within the potato factory's shelling process.
I would want to provide the option to produce popcorn in the potato processing facility while keeping the costs of these goods balanced.
What is needed: Gnadenthal

Thanks to Kradzer