In offline supermarkets, online snack stores and holiday gift markets for baked food, large rectangular tin boxes for biscuits have long become the mainstream choice for biscuit packaging. With regular shapes, excellent protective performance and abundant customization space, they replace traditional plastic and paper packaging boxes, and are favored by many food manufacturers and gift merchants. The rectangular metal tin boxes have flat and regular structures, which can hold cookies, soda crackers and crisp pastries in layers inside. The large-capacity design can store biscuits of various flavors without separate packaging, improving the efficiency of packing and display. Made of tinplate, they can isolate moisture, oxygen and insects. The sealed fresh-locking process can extend the shelf life of crisp biscuits, prevent them from getting damp, soft or oxidized during long-distance transportation, and greatly reduce merchants’ after-sales losses. High customization freedom is the core advantage of these tins. Brand logos, hand-painted baking patterns and holiday-themed patterns can be printed on the box bodies, with matte, glossy, gold stamping and other optional processes. They can be neatly stacked without occupying extra space for supermarket display. For gift box sales, they can be matched with ribbons and inner dividers to make exquisite gift sets, suitable for gift-giving scenarios such as Mid-Autumn Festival, Christmas and New Year goods. Compared with fragile paper boxes and deformable plastic boxes, large rectangular tin boxes for biscuits feature higher hardness, so they are not easy to be crushed and damaged during logistics handling. They can be recycled and reused, which conforms to the current green packaging development trend of the food industry. Small baking workshops, chain snack brands and foreign trade food exporters can customize sizes as needed, covering small trial packs to large-capacity family sharing packs. Nowadays, consumers pay more attention to packaging texture and food fresh-keeping performance. The rectangular biscuit tins with both practicability and beauty can highlight product grade and effectively solve the pain points of biscuit storage and transportation. They are cost-effective packaging choices for baked food, and are applicable to both domestic retail and overseas export markets for a long time.