Questionnaire used for the survey
| Perceived environmental benefits adapted from Magnier et al. (2019) | |
| [A, B, C] offers significant environmental benefits | |
| A | The use of disposable cups made of recycled and compostable plastic |
| B | The use of disposable cups made of biodegradable paper |
| C | The reuse of one’s personal cup |
| [A, B, C] is an important strategy for creating a sustainable future | |
| A | The use of disposable cups made of recycled and compostable plastic |
| B | The use of disposable cups made of biodegradable paper |
| C | The reuse of one’s personal cup |
| [A, B, C] can help save the environment | |
| A | The use of disposable cups made of recycled and compostable plastic |
| B | The use of disposable cups made of biodegradable paper |
| C | Reusing your personal cup |
| Social norms adapted from Carfora et al. (2019) and Koch et al. (2022) | |
| People who are important to me think I should buy a hot drink | |
| A | in a disposable cup made of recycled and compostable plastic |
| B | in a disposable biodegradable paper cup |
| C | using my personal cup |
| People who are important to me approve of my buying hot drinks | |
| A | in a disposable recycled and compostable plastic cup |
| B | in a disposable biodegradable paper cup |
| C | using my personal cup |
| People who are important to me want me to buy hot drinks | |
| A | in a disposable recycled and compostable plastic cup |
| B | in a disposable biodegradable paper cup |
| C | using my personal cup |
| Perceived contamination risk adapted from Magnier et al. (2019) and Wiefek et al. (2021) | |
| I think drinking a hot beverage [A, B, C] is very antigenic | |
| A | in a disposable cup made of recycled and compostable plastic |
| B | in a disposable biodegradable paper cup |
| C | using my personal cup |
| In my opinion [A, B, C] are dirty | |
| A | the disposable recyclable plastic cups |
| B | the disposable cups made of biodegradable/compostable paper |
| C | one’s own personal cups |
| I think there is a possibility of the hot beverage being contaminated if drunk [A, B, C] | |
| A | in a disposable recycled and compostable plastic cup |
| B | in a disposable biodegradable paper cup |
| C | using my personal cup |
| Value for money adapted from Magnier et al. (2019) | |
| I think I would spend my money well by buying a hot beverage [A, B, C] | |
| A | in a disposable cup made of recycled and compostable plastic |
| B | in a disposable biodegradable paper cup |
| C | using my personal cup |
| I believe that buying a hot beverage [A, B, C] meets my quality and price requirements | |
| A | in a disposable cup made of recycled and compostable plastic |
| B | in a disposable biodegradable paper cup |
| C | using my personal cup |
| I think I would get very good value for money if I bought a hot beverage [A, B, C] | |
| A | in a disposable recycled and compostable plastic cup |
| B | in a disposable biodegradable paper cup |
| C | using my personal cup |
| Purchase intention adapted from Koch et al. (2022) | |
| In future, I intend to buy hot beverage from a vending machine that | |
| A | uses disposable cups made of recycled and compostable plastic |
| B | uses paper and biodegradable disposable cups |
| C | allows me to use my own cup |
| I will always try to buy hot beverages from a vending machine that | |
| A | uses disposable cups made of recycled and compostable plastic |
| B | uses disposable paper and biodegradable cups |
| C | allows me to use my own cup |
| I regularly choose hot beverages from a vending machine that | |
| A | uses disposable cups made of recycled and compostable plastic |
| B | uses disposable paper and biodegradable cups |
| C | allows me to use my own cup |
| A | The use of disposable cups made of recycled and compostable plastic |
| B | The use of disposable cups made of biodegradable paper |
| C | The reuse of one’s personal cup |
| A | The use of disposable cups made of recycled and compostable plastic |
| B | The use of disposable cups made of biodegradable paper |
| C | The reuse of one’s personal cup |
| A | The use of disposable cups made of recycled and compostable plastic |
| B | The use of disposable cups made of biodegradable paper |
| C | Reusing your personal cup |
| A | in a disposable cup made of recycled and compostable plastic |
| B | in a disposable biodegradable paper cup |
| C | using my personal cup |
| A | in a disposable recycled and compostable plastic cup |
| B | in a disposable biodegradable paper cup |
| C | using my personal cup |
| A | in a disposable recycled and compostable plastic cup |
| B | in a disposable biodegradable paper cup |
| C | using my personal cup |
| A | in a disposable cup made of recycled and compostable plastic |
| B | in a disposable biodegradable paper cup |
| C | using my personal cup |
| A | the disposable recyclable plastic cups |
| B | the disposable cups made of biodegradable/compostable paper |
| C | one’s own personal cups |
| A | in a disposable recycled and compostable plastic cup |
| B | in a disposable biodegradable paper cup |
| C | using my personal cup |
| A | in a disposable cup made of recycled and compostable plastic |
| B | in a disposable biodegradable paper cup |
| C | using my personal cup |
| A | in a disposable cup made of recycled and compostable plastic |
| B | in a disposable biodegradable paper cup |
| C | using my personal cup |
| A | in a disposable recycled and compostable plastic cup |
| B | in a disposable biodegradable paper cup |
| C | using my personal cup |
| A | uses disposable cups made of recycled and compostable plastic |
| B | uses paper and biodegradable disposable cups |
| C | allows me to use my own cup |
| A | uses disposable cups made of recycled and compostable plastic |
| B | uses disposable paper and biodegradable cups |
| C | allows me to use my own cup |
| A | uses disposable cups made of recycled and compostable plastic |
| B | uses disposable paper and biodegradable cups |
| C | allows me to use my own cup |
Source(s): Appendix created by the authors