How to Make Tomato Powder Dehydrated Tomatoes Oh, .
Dec 02, 2016· If you want to make tomato powder, you will want to grind the tomatoes into a powder using a blender or food processor. I find it easier to first cut the tomato slices into smaller pieces and then grind them into a powder in the blender. If the powder isn't fine enough, you can switch to a coffee grinder to finish grinding the powder.