I'm overseas at the moment - and still have a few more days over here - and I've seen a few ads for some local brand of "hot camelia oil". I can't read the Chinese text that goes along with it, so I have no idea what specific product is being promoted.
Wikipedia notes that: "Tea oil is a sweet seasoning and cooking oil made by pressing the seeds of the Oil-seed Camellia (C. oleifera), the Japanese Camellia (C. japonica), and to a lesser extent other species such as Crapnell's Camellia (C. crapnelliana), C. reticulata, C. sasanqua and C. sinensis. Relatively little-known outside East Asia, it is the most important cooking oil for hundreds of millions of people, particularly in southern China."
Now I'm guessing that ad is for cooking oil.
Is the camelia oil that is traditionally used to protect blades in storage the same as the tea oil cooking oil?