I have a weird fondness for the texture, if not the taste of Velveeta (and Kraft American cheese slices). No other cheese has quite the same amount of slip or smoothness and manages to stay that way, undoubtedly because Velveeta contains sodium alginate, an algae derivative that helps it stay so silky-smooth even as it heats up. It also contains a high level of protein-to-fat ratios, which is what makes it a champion melter.
Thanks to three different kinds of salt (sodium citrate, sodium caseinate, and sodium hexametaphosphate) that are commonly available to aspiring molecular gastronomists… more