Do straws melt in the oven?

Yes, straws melt in the oven.

Straws are typically made of plastic, and plastic melts when heated to a high enough temperature. The melting point of plastic varies depending on the type of plastic, but most straws are made of polypropylene, which has a melting point of around 165 degrees Celsius (329 degrees Fahrenheit).

When a straw is placed in an oven, it will first begin to soften. As the temperature increases, the straw will continue to melt until it eventually becomes a liquid. The liquid plastic can then be poured or shaped into different objects.