How to use a food delivery thermal bag to avoid negative reviews?

Many negative delivery reviews aren't because the driver was intentionally slow, but because the food arrived in a mess. If soup spills, drinks get crushed, or hot food and cold drinks are packed together, the customer won't care whose fault it was in the middle—the negative review falls on the delivery person. When I'm out on deliveries, I treat items like soup, drinks, and pizza separately…