I've bought a tomato puree maker from the Italian shop in Beatrice Street. Joe uses a machine like this to puree his tomatoes every year ready for bottling, though I don't know if his is a red plastic one. It cost me just under £19. Apparently, it spits out the pips and skin. We shall see. So far, I've only had about five ripe tomatoes, but if we get no blight this year, I should get a decent crop.