Consumer testing is a key part of the new product development process (Kemp et al., 2009); if a product is to succeed it is important that the consumer likes the product so they will purchase it again (Van Kleef et al., 2005). Consumer liking studies are useful for determining which products consumers like and why they like certain products more than others. However, this is a difficult area of research as consumers do not necessarily know what they want or why (Van Kleef et al., 2005), but they are good at judging whether they like or dislike a product. Therefore other areas of sensory science are used in combination with consumer studies to aid understanding of consumer liking. In order to understand consumer liking, the way a product is perceived needs to be measured. In sensory science as well as affective (consumer) testing, descriptive tests may also be carried out, whereby a group of people (a panel) are trained to rate products for specific attributes; thus they act as instruments allowing quantitative data to be collected (Meilgaard et al., 1999).