I purchased a 100gm tin of Raw lanolin and have worked on 4 jerseys. The 1st of course was hard work, but the second lot of 3 was much easier. I downloaded the instructions from the web and worked in my washing tub.
The soaking in warm water was pretty easy, but the draining and final drying took about 2 days to complete. Good Wellington wind, reasonable temperatures and lack of rain helped.
I am very pleased with the results and my jerseys wear better and better, being warmer and more pleasant than before.