How to Open an Envelope Without Detection

Steaming open an envelope is the most common way to avoid detection.

Opening an envelope without others knowing that you did requires a little ingenuity. While many people use electronic forms of communication, traditional snail mail is still in use for professional letters and other documentation. The classic -- and still in use -- method for opening an envelope secretly is to steam it open. This dissolves the original glue on the envelope and is difficult to detect if done correctly.

Instructions

1. Boil water on your stove. While a kettle works best due to the direct stream of steam, a small pot can also work.

2. Hold the envelope over the steam. You will need to wear an oven mitt or use tongs to not burn your hand.

3. Remove the envelope from the steam in about 30 seconds.

4. Slide a thin-bladed knife between the envelope and its flap. This will help you determine if the glue has fully dissolved.

5. Hold the envelope over the steam for an additional 30 seconds if necessary.

6. Open the envelope slowly with the knife. Going slowly, slide the knife blade again through the glue to open the flap.

7. Seal the envelope with small dabs of any household glue. Wipe any excess off the envelope.

Tips & Warnings

• Be sure to not hold the envelope too closely to the steam. This can result in warping the paper with excessive moisture.

• Tampering with mailed letters is a federal offense.