I have a can of BLO for 36 years now. Used it a couple times over that span. and just used it to apply some natural color to a wood project. Seemed just fine.
friend of mines father has just recently passed and Geoff had given me this can of raw linseed oil and have dated it back to around the 1st war time. can is still sealed and it still feels pretty liquid inside. if it is good it will be better than any that you can get today. Most of the linseed oil produced today comes from a lower grade flax out of countries that have an ending with "stan". it doesn't have the smell or colouring that come from prime NA flax. here is a picture of the can and where it was purchased from. Burrell's English raw linseed oil
Victoria, B.C.
ron
And that can was probably less than seventy-nine cents when originally sold.