If you're like most people, you're too busy eating pizza to stop and consider how it arrived on your kitchen counter. So why don't pizzas arrive in round cardboard boxes?
It's mostly because the pizza industry doesn't really care to bother the cardboard industry. That's because they can be made in one piece as well as neatly piled.
The advantage of making a round pizza box would mainly be aesthetic (美感的). But it's not going to save space over an edged box. It's just bad pizza management.
In the 1800s, street sellers carried pies in portable metal containers that kept them warm. When pizza started rising in popularity in postwar America, pizzerias used a single piece of cardboard as support and then slipped the pie into a paper bag. Eventually, corrugated (瓦楞的) cardboard struck a fine balance between retaining heat without traping too much moisture.
Will we ever see a radical rethink of the pizza box? Some people have tried. In 2010, Apple filed for a patent for a round pizza container with holes so moisture can escape. It's used in the company's food courts. Another company, World Centric, designed a compostable round box in 2018 that can be used to reheat pizza. A similar product was test-marketed by Pizza Hut in 2019.
A. The pizza box has changed over time.
B. Pizza wasn't always attached to square cardboard.
C. Cardboard boxes are usually manufactured with edges.
D. If piled vertically (垂直地)，pizzas run the risk of rolling out of place.
E. Pizza boxes are designed in square for the benefit of deliverymen.
F. Think it long enough, though, and you may find it curious that pies usually come in square or other boxes.
G. Although all of the designs were claimed to keep pizzas warmer and crispier for longer, none have become widespread.
