Most Reliable Method

The Complete Float Test Guide

Learn the scientifically-proven water float method to determine egg freshness with 95% accuracy rate

Step-by-Step Float Test Instructions
Follow these exact steps for accurate results
1

Fill a Large Bowl

Use a bowl deep enough to fully submerge the egg. Fill with cool tap water (room temperature, around 68-72°F).

2

Gently Place the Egg

Carefully lower the egg into the water. Don't drop it as this could crack the shell and affect results.

3

Observe the Position

Wait 10-15 seconds for the egg to settle, then observe its position in the water.

Fresh & Safe
0-3 weeks old

Sinks to bottom, lies flat

  • • Perfect for any cooking method
  • • Best for baking and frying
  • • Firm whites and yolks
Older but Safe
3-5 weeks old

Stands upright on bottom

  • • Safe to eat when fully cooked
  • • Good for hard-boiling
  • • Use soon for best quality
Spoiled - Discard
Over 5 weeks old

Floats on surface

  • • Do not eat - discard immediately
  • • High risk of bacterial growth
  • • May cause food poisoning
Edge Cases & Common Questions
What to do when results are unclear

Egg tilts at 45-degree angle (partially floating)

This indicates the egg is 4-5 weeks old. It's still safe to eat if fully cooked (internal temperature of 160°F), but use it within 1-2 days.

Egg floats but doesn't reach surface

If the egg hovers in the middle of the water, it's borderline spoiled. Perform the smell test after cracking - if there's any sulfur odor, discard it.

Cracked shell during test

If the shell cracks during testing, the results are invalid. Check for any off-odors and discard if the crack was present before testing.

Want More Egg Safety Methods?

Combine the float test with other detection methods for maximum accuracy