3j still alive? How to keep chicken breasts tender?

[Nitszo]

3j still do diets if I email him?

Also, chicken breast how do I keep it tender after cooked and left in fridge?
I seen some guys boiling it in water in the oven ??

 

[Rastas]

He still does diets and is very passionate about it. I think only death will stop him! I personally only cook enough for the day and following day. Cook too much in advance and it tastes like rubber and you've gotta wash it down.