No, it is not recommended to melt High-Density Polyethylene (HDPE) in a home oven. HDPE has a high melting point of around 120-130 degrees Celsius (248-266 degrees Fahrenheit), which is well above the typical temperature range of a home oven. Most home ovens have a maximum temperature of around 250-260 degrees Celsius (480-500 degrees Fahrenheit).
Attempting to melt HDPE in a home oven can be dangerous and may result in the release of harmful fumes or even a fire hazard. It's important to follow proper safety guidelines when working with any type of plastic.
If you need to melt HDPE for a specific project or purpose, it's best to use appropriate equipment designed for melting plastic, such as a heat gun, a dedicated plastic melting device, or a controlled industrial melting setup. These methods provide better control over the temperature and ensure a safer environment for working with HDPE.