In Chapter 5, we learnt about our sense of taste, and the different ways we do so with other senses involved. Specifically the part where we can visually taste what we are seeing to interpret how good or bad something will be. Research in the text also clarifies this what we see and what we don't heavily influences how much we will want to eat something. In others words, presentation is literally everything to a point. For instance when taking sips of drinks when you are unable to see them can drop your ability to identify between them by at least twenty percent.
Texture can also influence how flavorful food can be for instance ice cream with it's creamy texture or gelato. Another factor is that your eyes taste food, and whether or not it's appealing will decide if you want to eat a lot or if you want to eat a little. Brain scanning studies also show that humans when smelling food to see if it's expired have visual receptors that become stimulated in the process. In addition, if you don't see something that's usually there with a drink or food that you're familiar with it's lack there of can decrease in flavor and won't taste as appetizing.
The Extraordinary Powers of Our Five Senses, Lawrence D. Rosenblum