Agro-industrial waste biotechnology refers to applications of biotechnological processes and techniques to convert agricultural/agro-industrial waste into valuable products. Processing and production in the food and agribusiness generate significant amounts of waste, including by-products from crops, fruits, vegetables and other agricultural products. By using biotechnological techniques such as fermentation, enzymatic conversion and microbial processes, it is possible to convert these waste materials into various useful products. But how do people get this information (and more generated from this field of science) in their daily lives? This study aims to cover that and provide an approach to how they ultimately relate to their purchase options. A total of 120 people (37.5% male, 62.5% female) from 6 different parts of Greece (34.2% from Lemnos) took part in this survey and the results were analyzed in terms of their gender, marital status, dependents and monthly family income. The main results of the survey included that 85.0% of those surveyed answered positively about their awareness of sustainability/circular economy. In addition, 64.6% of participants responded negatively when asked if they thought the information they received from the media and public bodies on sustainability/circular economy was enough for them. 36.7% of the participants answered that they would be willing to pay 20% to buy a product that itself or a part of it is produced by biotechnological applications and 46.7% that they would be willing to pay more in order to cover the cost of biotechnologicaly produced product/ingridient but the cost recovery is important to them. Finally, the results showed that the purchase option was tied to the dependents and there was a variability related to the monthly family income.