>>7004909More precise control of the transportation/preservation/preparation processes means you can take liberties with chain ingredients like this that you can't at home.
Like, at a Pizza Hut, you KNOW what the oven is going to be like and cook at. You KNOW the fridge type it will be stored in, which will be standardized enough that storage will be highly consistent.
Meanwhile, what kind of oven does the consumer taking the grocery store pizza have? Their freezer? So on and so forth.
Chains also regularly prepare their ingredients while a consumer might keep their frozen pizza for God knows how long.