When you put all the vegetables and stewing beef into the saucepan and bring it to the boil why do you always get that horrible looking scum on the surface as it boils? What causes it? I know it doesn't happen if you brown the meat first but I don't like frying things if I can help it.
That's the whole point, woolgang. I don't do anything which produces smokey fumes:- fried eggs, yorkshire puddings, pancakes, bubble and squeak, chips. I think it was the chips frying in a chip pan when I was a child. It put me of.
My Morphy Richards slow cooker (which I've had for at least twelve years) is a metal dish with a glass lid. It sits on a hotplate which I switch on. It bubbles slowly throughout the day and produces a lovely stewaround about six o'clock, regardless of the browning issue.
When it conks out, I'll a new fandangled one. Thanks for the link, shaney.
Blood goes white when it is cooked, which is why black pudding has to be dyed to make it look palatable. Gentle sealing of the meat (without the conflagrations that Tilly2 seems to produce) locks in the blood so that it doesn't cook separately and form a scum.