Per- and polyfluoroalkyl substances (PFAS) are forever chemicals that have been used for their heat, grease, and water-resistant properties on disposable dinnerware. However, PFAS pose risks to human health and the environment and alternative treatments are currently being implemented in the disposable dinnerware industry, including bio- or plant-based treatments. To date, consumer perceptions of the practical usage and environment-related attributes of PFAS versus plant-based alternative treatments have not been addressed. An online survey elicited 1,304 U.S. consumers’ perceptions of the attributes from each treatment and factors impacting those perceptions. On average, participants purchased disposable plates 13 times per year with 50%±50 purchasing them for everyday use. Approximately 20%±40 of the sample had heard of PFAS prior to the study while 62%±49 had heard of bio-based products. In general, PFAS treatments were perceived as performing slightly better in the practical usage attributes (i.e., grease resistant, water resistant, durable); however, the plant-based alternative treatments were perceived as more environmentally friendly (i.e., better for the environment, better for personal health, recyclable, compostable). Older participants viewing plant-based treatments as better at grease resistance, water resistance, durability, and microwavable relative to younger participants. Conversely, people with higher education levels viewed plant-based treatments as less resistant to grease but more durable. Interestingly, participants’ perceptions and existing knowledge of PFAS and bio-based products influenced their perceptions of plant-based treatments being more environmentally friendly. Results provide insights for industry stakeholders as they move forward in implementing PFAS alternative treatments.