Quote Originally Posted by mad fridgie View Post
Page 1 , 37
Frozen lettice
He didn't say his lettuce froze when he added refrigerant. He said if all his plates got to -20C, then his lettuce would freeze.

Well... yeah

He just needs to shut the system down when the fridge/chiller is down to temp.

I see no evidence that the insulated shields are needed... but it wouldn't hurt.