Don’t hold the paper in the steam for too long. You’ll get it all soggy and give the game away. Hold the envelope over the steam for about 15 seconds, then start trying to open it, returning to the steam if it is still stuck. [4] X Research source Consider using a skewer instead of your thumb or finger to peel the flap up. It allows for more precise control and is especially effective if you place the skewer vertically underneath the flap at one end and twirl it along the length of the flap.
As the steam from a kettle is more intense, it might be a good idea to wear an oven glove or something similar to protect the hand holding the envelope.
Bear in mind that you may have to hold the strip down for a little longer than usual to get it to stick.
If it does not all reseal on the first try put it back in the steam briefly and press it together lightly. Make sure not to rub the envelope, because when it is damp it may rub and tear.
