Hello, former part timer for Ya-Kun
Our boiling water tank is just right beside us as we share the same boiling water for the coffee, the water is set to boiling point, as the cashier i was task to make the eggs.
so firstly, 5 minutes with the first set of boiling water covering all the eggs in one large metal container holding 20ish eggs
After 5 mins, remove a bit of the water to the same level as the first eggs on top and add in boiling water again, after 2 and a half mins, its done
Can ask me about anything else if you guys want
Edit:mix the eggs, a lot. so every egg can be cooked equally