If the host is made correctly, it should dissolve. For those in the New Order, maybe their host are made differently.
If it's not made correctly it doesn't matter what you do with it because Our Lord will not be present. The church requires proper Form, Matter and Intent. The addition of yeast, sugar, salt, any grain other than wheat etc invalidates the proper matter requirement. Even leaving the lid on the ciborium during the Consecration will invalidate the Consecration.
Using ordinary bread, a hot dog bun or danish is NOT Holy Communion.
It's sad to see how much has been forgotten.