Why paper cupcake holders burn in the oven?

Paper cupcake holders burn in the oven because they're made from paper, which is flammable. When exposed to high heat, the paper will ignite and catch fire.

Here's a breakdown of why this happens:

* Paper's composition: Paper is primarily made from cellulose, a natural polymer that is easily combustible.

* Oven heat: Ovens reach temperatures high enough to ignite paper, typically around 350°F (175°C) or higher.

* Direct contact: Paper cupcake holders are directly exposed to the heat of the oven, accelerating the burning process.

While some cupcake holders are labeled as "oven-safe," these are typically made from silicone, foil, or parchment paper (also known as baking paper). These materials are designed to withstand high temperatures without burning.

Important note: Even oven-safe cupcake holders should be monitored closely to prevent them from getting too hot or burning.