I saw so many posts on the net speaking highly about the precise temperature and time to cook a “perfect” soft boiled egg. The range of temperature for a soft egg varies from 57°C (basically raw) to 70°C (hard-boiled, right before it gets that green ring around the yolk).
After reading the Cookingissues article about soft eggs I decided to try the 63°C soft boiled egg cooked for 1 hours with my Julabo immersion circulator. In this article they say my “ favorite 63°C “custard egg”—so named because of the creamy consistency of the yolk, which cannot be achieved with conventional cooking”.
My 63°C soft boiled egg has not reached my expectations. The yolk was not as creamy as mentioned in the Cookingissues article. The egg was good but nothing special in my opinion. Next time I’ll raise the temperature of 1°C (64°C) and see what happens.
By the way I’ll also read carefully this fantastic article from Khymos.