pH Plate

Food Experience Design, Product Development
Demonstrating the acid content of everyday foods through a visually stimulating experience, highlighting the importance of an alkaline based diet. By creating homemade organic litmus paper and utilizing origamie techniques, my partner and I are challenging users to think differently about their food.

Class: MICA, UNRVL the Code
Team: Priya Pappu
Primary Role: Design & Development

To see my process and journey throughout the semester, see my Creative Process Journal


Testing & creating the litmus paper: The process of creating the litmus paper involves using red cabbage as a dye. Red cabbage has certain chemical properties and pigments that allow it to react to varying levels of acid.

Evaluating paper types: We knew we wanted to create some kind of food carrying apparatus. Therefore we needed to test various papers for structural integrity.

Choosing plate fold: In order to create a plate form, we studied some very simple origami folds. Ultimately, we decided on a fold that had just enough detail to be visually interesting, but also approachable and easy to carry.

Testing & creating litmus paper

Testing & creating litmus paper

Evaluating Paper Types

Evaluating Paper Types

Final fold structure below of our plate that transforms into a box.

Final fold structure below of our plate that transforms into a box.


Exhibition with live demo: At the end of our semester we had a live presentation and gallery style exhibition of our product. Because the purpose of our litmus paper plate was to alter your food eating experience, we conducted demos of the plates in action, as well as an artistic representation of a “food explosion” that passing viewers could see how visually striking the acid content of different fruits and vegetables.

Poster Display

Because our product is currently in prototype phase, we wanted to share more information about how the pH of certain foods can affect our bodies. Therefore, I designed a poster to help viewers understand the importance of eating a diet with more alkaline forming foods and minimizing the intake of acid forming foods

For example, while a lemon is acidic in its raw form (as our litmus paper plate will show you), it is actually alkaline forming in the body, and this helps your body digest foods and maintain its ideal pH of being slightly more alkaline.