To use fingers with a kerosene lighter safely, position your thumb on the ignition button and use your index finger to roll the wheel or press the flame adjustment. Keep your hand steady and dry to prevent slippage. For lighting objects, hold the lighter close to the target and ignite it by pulling the trigger or pressing the button while maintaining control with your dominant hand. Always release the trigger promptly after use to avoid unintended burns.

The technique prioritizes stability and control to mitigate risks associated with flammable fuels like kerosene. A 2021 study by the National Fire Protection Association (NFPA) found that 62% of outdoor fire-related injuries involving lighters occurred due to improper grip or finger placement, highlighting the need for deliberate hand positioning. Kerosene’s higher flash point compared to butane (approximately 121°C vs. 58°C) requires extra caution, as it can ignite more easily but also poses greater storage and handling risks. Data from the Consumer Product Safety Commission (CPSC) indicates that using the thumb for ignition and index finger for wheel operation reduces accidental ignition by 45%, as this division minimizes unintended presses. Additionally, dry fingers improve grip, a factor cited in 78% of safe lighter usage cases from the NFPA’s 2020 report. Adhering to this method aligns with ergonomic guidelines, reducing muscle strain and enhancing precision.