Coffee is one of the most popular drinks, linked directly to tradition and culture. Coffee consumption continues to increase, resulting in very large quantities solid residue in the form of spent coffee grounds. Spent coffee grounds (SCG) contain a large amount of organic compounds. This paper aims to review a number of options to utilize productively SCG in electronics applications that currently being researched. Several previous research and innovations explored certain components as value-added products. However, by-products of coffee can also be considered as a potential functional material to be utilized in various electronic applications. Utilization of coffee grounds is an urgent need through a number of innovative and practical ideas to increase the added value and potential of coffee grounds as a whole.

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