Dry mouth from certain foods?

My friends think I'm weird but certain foods make my mouth really dry or rubbery feels horrible. Most of them have a similarity like scones and crumpets especially these two why do they do this to me if feels really weird oooh shortbread that's another there's something in these foods that gives you a really weird finish in your mouth does anyone else gets this as well? it's not an illness it's something in the scone and finally who ever gives the best or funniest description of what I'm talking about gets top comment ;)