Security personal thought the grinders were hand grenades.
In fact, RCMP Corp. Craig Douglass says the grinders were made to look just like hand grenades.
Douglass says any security staff member looking at the replicas through an X-ray machine would probably have their heart stop.
The airport was evacuated Tuesday morning for about 30 minutes, delaying a few flights.
Douglass says the 44-year-old man who packed the replicas was questioned and released without charges when officers determined he intended no harm. (CKPG)