How do I create the vacuum suction in this glass cupping jar without using fire?

The Planeta Zdorovia Massaažipurk klaasist operates on the principle of negative pressure. To create the vacuum, you must heat the air inside the glass jar before applying it to the skin. This is typically done by briefly introducing a flame (such as from a cotton ball soaked in alcohol) into the cup to warm the air, then quickly removing the flame and placing the jar against your skin. As the air cools, it contracts, creating the suction that lifts the skin and soft tissue.

Because this is a classic glass model intended for sliding massage on larger zones like the back or legs, precision is key. Ensure the glass is heat-resistant and handle it with care to avoid thermal shock or burns. The glass material allows you to clearly see the level of suction and the skin's reaction, helping you adjust the pressure and movement accordingly. Always use a generous amount of massage oil to ensure the jar glides smoothly over the skin, preventing friction or irritation during the sliding technique.

If you are unsure about the heating process or feel uncomfortable using open flames, consult a qualified specialist or consider alternative, non-thermal cupping methods. Never apply the jar to damaged, irritated, or inflamed skin, and avoid using it over varicose veins, joints, or prominent bones.