We report herein different culinary processes to extract and analysegelatine from fish scales, as well as fish flours from bones and scales, asinnovative tools for waste valorisation in the food services industry. Thecurrent study focuses on the valorisation of two important fish by-products, such as scales and fish bones, and their transformation intovalue-added ingredients for culinary applications. On the one hand, aculinary methodology for fish collagen extraction from fish scales will beestablished. On the other hand, key characteristics such as chemicalcompositions, melting temperatures and textures were thoroughly analysed,and their behaviours in different culinary preparations is presentedand discussed.