There's no point to growing up as an idolatrous Catholic if I can't supply a little insider information.
Last time I had one on my tongue, the communion wafer was just that--a wafer--not a cracker. It has a foamy texture like that of a packing peanut (which are not actually peanuts) and I am almost certain they are formed from cornstarch and water because they sort of melt away. I don't
think that they are actually baked; but I could be wrong.
Speaking of packing peanuts, some of them are made from cornstarch and it would not surprise me if they and communion wafers came from the same factory. Some other packing peanuts are made from styrofoam. The first kind can be ingested, but they provide as much nourishment to the human body as communion wafers provide grace to one's immortal soul.
Even so-called "Holy Water" has more value because it, at least, could be used to keep someone from dying of thirst or sepsis.
Oh, by the way, I was tricked into attending some sort of "Shabbat"* service (I thought that I was going to witness to some witches) and they totally stole the whole wine and bread thing from Christianity. I was so shocked that I almost didn't stay for cake and cookies afterward.
* They were Jews, not witches. Who knew?