Unfortunately, you can't truly 'un-cook' an egg. However, chilling the eggs rapidly in an ice bath immediately after removing them from the water bath can help to slow down the cooking process and prevent further coagulation, minimizing the impact of the overcooking.
Sous vide cooking relies on precise temperature control to achieve a specific level of doneness. Eggs are particularly sensitive to temperature changes. When you leave them in the water bath for longer than intended, the proteins continue to coagulate, leading to a firmer, potentially rubbery texture.
While you can't reverse the cooking process, rapidly cooling the eggs can help. Here's how:
Prepare an ice bath: Fill a large bowl with ice and water.
Remove the eggs: Carefully remove the eggs from the water bath.
Immediately submerge: Place the eggs directly into the ice bath.
Chill thoroughly: Let the eggs chill in the ice bath for at least 15-20 minutes. This will rapidly lower their internal temperature.
This rapid cooling won't undo the overcooking, but it will slow down the process and prevent the eggs from becoming even more overcooked. The texture might still be slightly firmer than desired, but it will be better than if you had left them at the cooking temperature.
Always set a timer when sous vide cooking, especially with eggs. Consider using a sous vide immersion circulator with an alarm function that will alert you when the cooking time is complete. This helps prevent accidental overcooking in the first place.