Rising cost of takeaway coffee

Gregory Robinson, Metro.

Hello, I'm looking to speak to an expert in consumer behaviour/consumer trends for a story about the rising cost of takeaway coffee (e.g. Pret, Caffe Nero) in recent months. It would be great to understand the reasons behind the price rises (has there been a spike in ingredients costs, environmental factors, staff costs) as well.

Please include your bio along with your response. Thank you.