The term “throat hit” in vaping refers to the physical sensation felt in the throat and upper chest immediately upon inhaling vapor. This sensation ranges from a subtle warmth to a sharp, scratchy feeling. It is a highly subjective experience; some users prefer a smooth inhalation while others seek an intense “kick”. For those transitioning from smoking, the throat hit is significant because it replicates the familiar feeling of inhaling cigarette smoke, providing satisfaction.
The Mechanics of Throat Hit
The intensity of the throat hit is primarily determined by the chemical components within the e-liquid, specifically the ratio of its base ingredients and the concentration of nicotine. Propylene Glycol (PG), one of the two main carrier liquids, is the ingredient most directly responsible for creating the physical sensation. Higher concentrations of PG correlate with a more pronounced and sometimes sharper or tickly hit at the back of the throat.
Nicotine concentration also substantially affects intensity. Higher nicotine levels (mg/mL) produce a stronger, more robust throat hit.
Beyond the liquid’s composition, the physical state of the inhaled aerosol contributes. Increased vapor temperature from the heating element can exacerbate harshness and make the sensation feel less smooth.
Controlling the Intensity
Users have several practical methods to fine-tune the throat hit, centering on both the e-liquid choice and the device settings. Adjusting the ratio of Propylene Glycol (PG) to Vegetable Glycerin (VG) is one of the most effective ways to manipulate the feeling. E-liquids formulated with a high-PG ratio (e.g., 70% PG) deliver a strong, sharp hit, while those with a high-VG ratio (e.g., 70% VG) provide a smoother sensation.
The power output of the device is another adjustable factor that influences the vapor’s temperature and density. Increasing the device’s wattage or voltage causes the coil to heat the e-liquid more rapidly and at a higher temperature, resulting in a harsher, more intense hit. Conversely, reducing the power setting generates a cooler, less irritating vapor for a milder experience.
Airflow management on the vaping device offers a final layer of control over the sensation. A tighter airflow setting restricts the amount of air mixing with the vapor, concentrating the aerosol and heat, which consequently increases the throat hit. Opening the airflow dilutes the vapor and allows for a cooler, smoother inhalation, softening the impact.
Comparing Nicotine Formulations
The chemical structure of the nicotine itself profoundly affects the resulting throat hit, creating a modern distinction between two primary e-liquid types. Freebase nicotine is the traditional form used in most standard e-liquids and is known for its alkalinity. This high pH level makes the vapor naturally more irritating and sharp, particularly at concentrations above 12 mg/mL.
Nicotine salts (nic salts) offer a different experience. They are created by bonding freebase nicotine with an organic acid, typically benzoic acid. This process lowers the pH, neutralizing the harsh, alkaline nature, resulting in a vapor that is smoother and less irritating, even at very high concentrations (e.g., 50 mg/mL).
The choice between the two nicotine types often depends on the desired intensity and concentration. Freebase nicotine is preferred by users seeking a robust throat hit at lower to moderate nicotine levels. Nicotine salts are favored by those who require high nicotine concentrations but want a virtually imperceptible, smooth inhalation.