Thanks Hoffy, I just went and double checked that on Vanbar and you are correct. I wonder where I got the idea from that they were selling the kits in powdered form? Okay, so I think that's the path I'll take for a first run and I'll see how I go with it. Now I just need to get myself a better thermometer and I'm all set.
Thank you again; particularly for pointing out my error there - definitely good to know!