1 Introduction Edible electronic devices are composed of ingestible, biocompatible, and food-safe materials. They have emerged as a promising platform for healthcare, food safety, and environmental monitoring applications [1-3]. These systems safely disintegrate or can be digested after fulfilling their function, enabling their use, for example, as in vivo diagnostics [4, 5], transient sensors [6], and smart packaging [7, 8].