This study focused on the physicochemical analysis, acceptability, and marketability of CORNADO Drip Coffee with three serving proportions of 10 grams, 15 grams, and 20 grams to the group of Barista, Coffee Shop Owners, and Consumers of Marikina City during the school year 2023-2024. Experimental method was used in this study to determine the acceptability of corn cob and avocado seed drip coffee and evaluated in terms of appearance, aroma, color, and taste and likewise, on its marketability. As regards the results of the physicochemical analysis of the product, the findings revealed that the CORNADO Drip Coffee, in terms of low carbohydrate count, low moisture content, low acidity, and low titratable acidity is a healthy alternative coffee drink. In addition, the three groups of respondents evaluated the acceptability level of CORNADO Drip Coffee with 10 grams, 15 grams, and 20 grams proportion in terms of appearance, aroma, color, and taste as Very Acceptable. Meanwhile, there were no significant differences on the evaluation of the three groups of respondents on the acceptability level of CORNADO Drip Coffee in three proportions in terms of the said criteria. On the other hand, the level of marketability as evaluated by consumers, barista, and coffee shop owners generally received a rating of Very High Potential utilizing the 10 grams, 15 grams, and 20 grams in terms of supply availability, production cost, and consumer demand resulting to no significant difference on their evaluations. Furthermore, the respondents provided comments and suggestion for further improvement of the product.