Paper bag... Not always. Coffeebox deliver it in a giant cardboard gift box surrounded by reflective thermal bubble wrap. Felt like I was paying more for the packaging than the coffee... Luckin I suppose do go for the paper bag and pay a fortune for immediate delivery to ShunFeng.
The joys of VC funded coffee businesses I suppose...
FWIW they probably pay 4-6 rmb to SF. Their rates for commercial customers are much lower than for individual customers. Given the high rent, I bet this is still more efficient for them than running a 500+ sqm joint like Starbucks.