What is the best method to send perishable food?
You can use dry ice to protect the food items. Use a deposable Styrofoam ice chest then place that inside a larger box. You must identify that the box contains dry ice and perishable food items.
The best method to send perishable food is by the use of a courier service. Depending on the nature of the food being sent, a refrigerated courier service would be appropriate.
Packed well and overnight