What type of device should be avoided while igniting a torch?

When igniting a torch, the use of an open flame device should be avoided because it poses significant safety risks. Open flame devices can inadvertently ignite flammable materials in the surrounding area, leading to uncontrolled fires or explosions. Additionally, they can make it difficult to control the ignition process, which is critical when working with potentially hazardous materials.

In contrast, other types of ignition devices like electric igniters or friction devices are designed to provide a controlled and safe means to ignite the torch. Electric igniters can reduce the risk of accidental ignition of surrounding materials and allow for a more precise initiation. High-pressure ignitors, while less common, also offer controlled ignition but should be used by those specifically trained in their operation. The emphasis on safety and control makes avoiding open flame devices essential in torch operations.