The production of oil began in 1846. So that's around 150 years.
500 years.
About 400 years at the rate we're going (from 2011). _________________________________________________________ All oil will take quite some time, but there are some caveats: not all oil is cheap to...
About 9 months
Flax seed oil is a fine oil and so its composition is rather delicate. It should be kept for no more than 10 days in the fridge.