What exactly do you mean by "tissue". Do you mean human tissue or a tissue that you blow your nose one?

There are no printers that can print in metal, food and other objects at the same time that I know of. It's something that many of us expect to see in the coming years though. Also, I'm not sure what you would want to mix a metal printer with one that prints in food. It could cause some toxic effects. I doubt we will ever see a printer that can print food and other materials. However we will see multiple non-edible extruders on one printer running at once very soon.