This is a very easy – and embarrassing – mistake to make, so listen up!
Once and for all, “préservatif” does NOT mean preservative (like the kind you find in American bread).
préservatif = condom
So, if you ever want to explain that you like French baguettes because they don’t contain preservatives, make sure to talk about “les conservateurs/additifs alimentaires.”
You’ll thank me later.