What is the average weight of a bread crumb?

There's no definitive answer for the average weight of a bread crumb because it depends on several factors:

* The type of bread: Different bread varieties have different densities and textures. A crumb from a dense sourdough will be heavier than one from a light and airy baguette.

* The size of the crumb: Bread crumbs vary greatly in size.

* How the bread is crumbled: If you crumble the bread by hand, the crumbs will be larger and heavier than if you use a food processor.

However, we can make some estimates:

* A single small bread crumb might weigh between 1 and 5 milligrams.

* A larger bread crumb might weigh up to 10-20 milligrams.

It's important to remember that these are just rough estimates. The actual weight of a bread crumb can vary significantly.