What are the requirements for Square Pizza Box?

Pizza Box is very common in our daily life. Square Pizza Box refers to the packaging box used to hold the pizza. The main materials are white cardboard, corrugated paper, and PP plastic. Next, let's take a look at the requirements of Square Pizza Box.

Here is the content list:

• The Square Pizza Box must be stable and stackable.

• Square Pizza Box must have insulation.

• The Square Pizza Box must have humidity control.

The Square Pizza Box must be stable and stackable.

Most packaging used to ship pizzas is made of cardboard because it is inexpensive, easy to use, and lightweight while maintaining sufficient structural integrity to hold and ship pizzas. Both solid fiberboard and single-wall corrugated board are used. The corrugated cardboard used is mostly E corrugated size (microwave or fine corrugated, the corrugated distance is 1.0 to 1.8 mm), but there is also thicker B corrugated cardboard, the corrugated distance is 2.2 to 3.0 mm. The geometry of the cardboard determines not only the stability of the box but also the type of paper and its grammage. For the liner mainly containerboard is used inside the Square Pizza Box. Not only does this make the box stable, but it is also more resistant to moisture and oil. To minimize the space required to store the packaging, the Square Pizza Box is folded from a flat blank before use. The storage space required depends largely on the different thicknesses of the material.

The Square Pizza Box, made from solid fiberboard, takes up about half the space required by an E-slot cardboard box and a quarter of the space required by a B-slot cardboard box. In addition to the material itself, the stability of the box depends on the shape it is folded into. The Square Pizza Box type where the side walls folded into the front wall are securely fastened to the side walls has become standard. In this case, the walls of the box are connected at the edges, which increases its stability. The traditional way of folding boxes is an example of this kind of folding. Its disadvantage is that the walls of the box rise vertically, which makes it more difficult to cut the pizza in the box with a pizza knife.

Square Pizza Box must have insulation.

The Square Pizza Box should be able to transport baked pizzas with as little quality loss as possible. This means that the box fulfills two tasks that are not easy to combine: on the one hand, the box needs to keep the pizza warm by keeping the pizza warm as much as possible from the cold outside air, the occasional wind, and thermal radiation. To reduce heat flow, the box must be closed as tightly as possible to keep warm air inside. Consumers consider temperatures between 70 and 85°C to be ideal for eating pizza. On the other hand, the box should keep the pizza from getting soggy so that the crust and covering are crispy when they arrive. To ensure this, the condensation caused by the pizza must either be vented (vents and some diffuse through the cardboard) or absorbed by the box. The Square Pizza Box, made of single-wall corrugated cardboard not equipped with additional insulation, cooled transported pizzas too far after only ten minutes.

The Square Pizza Box must have humidity control.

Oil in pizza dough can extract some of the essence of cellulose when it comes in contact with untreated corrugated cardboard. To prevent the materials of the Square Pizza Box from changing the taste of the pizza, while preventing the cardboard from getting wet, the inside of the Square Pizza Box has a thin aluminum foil coating. Another possibility is to place the pizza on a mixture of aluminum foil, corrugated cardboard and blotting paper, or wax paper. However, this significantly changes the thermodynamic properties of the Square Pizza Box. The pizza crust can't release any humidity downwards, which means that the layers underneath will not only stop the fat from dripping downwards but also the steam.

For more questions about Square Pizza Box, please contact us. Years of accumulated R&D and production experience to provide you with more product services and technical support! Our official website is https://www.welmpackaging.com/.