Businesses in the manufacture of other food products make a varied range of foods that do not fall into more specific manufacturing categories. Products may include soups and broths, prepared meals, sauces, condiments, spices and seasonings, specialist food preparations, yeast, extracts and concentrates. Some manufacturers produce ingredients or semi-finished foods for use by other food businesses, while others make packaged products for sale to retailers, caterers or consumers. Typical activities include developing and adapting recipes, sourcing and preparing ingredients, cooking or blending, preserving, portioning and packing food. Depending on the product, processes may involve chilling, freezing, drying, fermenting or other methods of extending shelf life. Manufacturers may also provide services such as producing goods to another business's specification, labelling and packing, and managing food safety, allergen information and product traceability.