Choose bread, preferably stale or dry bread
Remove any packaging
Cut bread into smaller pieces if needed
Place bread pieces in a food processor
Pulse until fine crumbs form
For coarse crumbs, pulse fewer times
For very fine crumbs, process longer
Alternatively, grate bread using a box grater
Alternatively, dry bread in an oven at low temperature, then crush it
Spread crumbs on a tray if drying further
Store breadcrumbs in an airtight container
Keep in a cool, dry place or freeze for longer storage