Seasoning at 250 deg?

[JMWhite]

Seems I saw recently a vintage cast iron skillet label that said to season at 250 def for 3-4 hours. Does anyone know the source of that?
Has anyone seasoned like this? If so, results?
I’m trying to season without the smell at higher temps.
Thanks in advance

 

[Scott J.]

I use my gas grill to season my cast iron outside. Doesn't stink up the house.

 

[SeanD]

Its warmer out now, for the most part. Just open a few windows.

 

[Doug D.]

I assume it would bake to dryness in that time at that temp. The question would be would it be durable in use. If odor is an issue, the more refined the oil/fat (which also equates to higher smoke point), the less it should smell. That's why Crisco shortening is a popular choice, as is refined grapeseed oil.