How to Send Baked Goods in the Mail | Eater
"The mail-order baker advises choosing dense, forgiving items—quick breads, bundt and coffee cakes, and pies with crumb toppings—because they withstand transit best. Freezing wrapped goods (tightly in plastic wrap or zip-top bags, even frozen in a desired arrangement) both firms them for shipping and helps preserve freshness; insulated containers aren’t required, and frozen items can simply defrost en route. The team warns against water-soluble packing materials, recommends filling all voids so nothing shifts, suggests labeling packages perishable, and urges sending packages early rather than gambling on last‑minute holiday deliveries; they also budget roughly $10–$20 per package." - Jenny G. Zhang