The phrase "a poultice of sieved gelatine mousse" is one I would have expected on the menu of El Bulli rather than in an article on document preservation. I can

The phrase "a poultice of sieved gelatine mousse" is one I would have expected on the menu of El Bulli rather than in an article on document preservation. I can't imagine how that works, but there clearly is a very technical side to preservation.