Some may not season their cast iron tortilla press most especially if this doesn’t have an electric component. This is because you’re not using this with heat, hence, there’s no need for its non-stick ability (use cookie sheet or plastic so it won’t stick on the surfaces). However, if this has an electric component. You might want to consider seasoning your cast iron tortilla press. According to tortillapress.org, a site that’s centered on tortilla presses, it is still better to season it so that you can best use it because of its natural non-stick.