KITCHEN PRACTICE 2 — Fresh vs. Older Egg, Poached Side by Side
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Chapter: French Cookery 8 — Egg Techniques

TASK
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Poach two eggs side by side — one genuinely fresh, one a week or
more old — using the exact same water and method. Compare how much
the white spreads in each case.

WHAT TO DO
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1. Set aside one genuinely fresh egg and one that's been in the
   fridge for at least a week or two — check the carton dates if
   you're not sure.
2. Bring a pot of water to just below a simmer and add a small
   splash of white vinegar.
3. Crack the fresher egg into a small cup, lower it close to the
   water's surface, and slide it in gently.
4. Once it's cooking, repeat with the older egg in a separate area
   of the same pot, or in a second pot with identical water and
   temperature.
5. Cook both for the same amount of time (roughly 3 minutes), then
   lift each out with a slotted spoon and compare their shape.

WHAT TO EXPECT
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- The fresher egg should hold together in a fairly compact, rounded
  shape, with the white staying close around the yolk.
- The older egg's white should spread out more noticeably into
  wispy, ragged strands trailing away from the main body of the egg
  — a real, visible difference even though both eggs were cooked in
  identical water at the identical temperature.
- Both should still be edible and taste fine — the difference here
  is entirely about shape and presentation, not safety or flavour.

WHY THIS WORKS AS AN ANSWER
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This is the clearest possible demonstration of why egg freshness
genuinely matters for poaching specifically — with water temperature,
vinegar, and technique all held identical between the two eggs, any
difference in how much the white spreads can only be explained by
the egg's own freshness. It also sets a realistic expectation:
technique alone can't fully compensate for an egg that's already a
few weeks old.