Not unless it's changed in the last year; EU sealed bags have been accepted at security for awhile now. No need to stuff it back into your checked bag!

I've done it myself several times; as long as it's in the sealed bag, with the receipt clearly shown through it, you drop it in a security bin. A CBSA agent will take the bag, tell you that they need to verify it's safe, and take it to a scanner.

They'll pierce the bag to sample the air, so you will not be able to take it through security again, but after that you can bring it on your next flight.