Insulation can maintain a temperature, but it won’t cool items that are warm. It’s important to chill your bottles to their desired temperatures ahead of time. You may want to add ice or gel packets to the tote if traveling for a while. It’s also advised to avoid opening the tote and to quickly remove the desired contents if you must open it. Each opening lets cold air out and warm air in. A wine tote isn’t designed to maintain cold temperature for hours on end, but it easily can keep its contents cool for an hour or two.