Soggy sandwiches suck. Every primary school kid knows it. The mighty sanga – that most portable and convenient of meals – sadly just can't hold its shit together for more than than a few hours.
But times they are a-changing... the US Army has just come up with a way to increase the life expectancy of a sandwich 2000-fold.
Using what they call 'hurdle technology' to limit moisture and prevent it from seeping into bread, they've developed a sandwich that can remain 'fresh' and sog-free in a soldier's backpack for up to three years.
Watch this space school-kids - the age-old lunchtime tradition of unwrapping limp white triangles and chucking them straight in the bin may just about be over.