A method for the manufacture of animal feed supplement, typically a low moisture block (a vitreous/glassy block of carbohydrate comprising additives therein). The method comprises processing a carbohydrate-containing liquid composition to induce cracking and evaporation and thereby form a concentrated liquid composition； and solidifying the concentrated liquid composition to form the animal feed supplement. The carbohydrate-containing liquid composition is processed by continuously feeding the carbohydrate-containing liquid composition into a first (input) end of a thin film processor, subjecting the carbohydrate-containing liquid composition to cracking and evaporation within the thin film processor and continuously removing the concentrated liquid composition from the second (output) end of the thin film processor.
