A computer-implemented method for creating a bespoke laundry treatment recipe includes receiving fabric data related to one or more of stain identity, fabric identity, user requirements and user preference; comparing by means of a data processing system said input data with ingredient combination data stored on a non-transitory computer readable storage medium, and formulating one or more laundry treatment recipes, said recipes being bespoke to the user input data; wherein said ingredient combination data comprises: multiple ingredient composition data; multiple combinations of said ingredient compositions; and multiple treatment (e.g. stain) categories related to said ingredient composition combinations.