If I read this correctly the second best option which is much more cost effective is canola oil? Also can someone find out from Lodge why they chose soybean oi

If I read this correctly the second best option which is much more cost effective is canola oil? Also can someone find out from Lodge why they chose soybean oil? That would probably be informative. http://www.lodgemfg.com/use-and-care/what-is-seasoning http://www.lodgemfg.com/use-and-care/what-is-seasoning