One of the best things about cheese is its ability to melt into gooey, molten deliciousness. <br /> <br />But as this video shows, these cheese slices from Mexican discount chain Aurrera aren’t like normal cheese. <br /> <br />In fact, their refusal to melt has led some people to question whether they’re actually cheese at all. <br /> <br />Jose Raul Reyes, the Mexican chef who posted the video online, explained: ‘I tried it out after hearing from a friend of mine that these cheese slices are not real cheese and don’t melt’ <br />Worryingly, instead of melting as you’d expect, the cheese slices simply turn black, which has led some online commentators to say that the cheese is more like plastic than food.