How do you measure the thickness of egg shell?

There are different methods available to measure eggshell thickness. Here's one common method:

Micrometer:

1. Gather Materials: You'll need a micrometer with a flat anvil, a piece of soft cloth or foam to protect the eggshell, and a clean, dry egg.

2. Prepare the Micrometer: Calibrate the micrometer by bringing the anvil and spindle together and setting the reading to zero.

3. Prepare the Egg: Gently wipe the egg with a cloth or tissue to remove any dirt or debris.

4. Position the Egg: Place the egg on the soft cloth or foam with the larger, flatter end facing up. Make sure the egg is stable and won't roll.

5. Measure the Eggshell: Carefully lower the spindle of the micrometer onto the eggshell, ensuring it's perpendicular to the shell surface. Apply light pressure without crushing the shell.

6. Read the Measurement: Once the spindle touches the shell, read the micrometer's digital or dial indicator to obtain the eggshell thickness measurement in millimeters (mm).

7. Multiple Measurements: To get an accurate representation, take multiple measurements at different points around the eggshell and calculate the average thickness.

Note: Eggshells can be fragile and easily break. Handle the egg with care throughout the measurement process.

It's also worth mentioning that there might be variations in eggshell thickness depending on the type of egg and the breed or species of the bird that laid the egg.