Refill times will vary depending on your propane tank's size, but knowing how much propane you exactly have left is always helpful,

and TikToker @_scmomof2_ is here to help.

All you need is a mug filled with hot water, which you pour over your tank. From there, all it takes is your hand to feel where the jug's temperature goes from hot to cold.

After @_scmomof2_ pours the water over the tank's side, she feels down until it gets cool, since the water will heat up the metal.

The water will heat the metal, but the propane will absorb the heat and remain cold, signaling where your levels are. To avoid hurting yourself, keep the water hot but not boiling.