The aspirator can be used to make the process of blowing out raw eggs easier and more hygienic (rather than blowing out by mouth).

You can also decorate hard-boiled eggs but blown out eggs will last longer.

For instructions visit https://www.wikihow.com/Blow-Out-Eggs

Wash the outside of the egg with hot, soapy water first and collect the contents in a clean, dry bowl so that it can be used later in cooking eg. pancakes.