16 Things Astronauts Can’t Take to Space—and What They Use Instead

Traditional baked goods pose a serious hazard in space due to their tendency to produce crumbs. These tiny particles can float freely in microgravity, potentially damaging sensitive equipment or getting into astronauts’ eyes and lungs.

Instead of regular bread, astronauts use tortillas as their primary sandwich base. This crumb-free alternative has become a staple of space cuisine, offering a practical solution while still allowing crews to enjoy familiar meals.