My dad is setting up a brine water block ice plant for customer, put aside the system, would like to know which is better, normal chill water or hot water to ice cans?

Normally we are using filter chilling water , after reading the "Mpemba effect" would like to give it a try, just wonder anyone try it b4?




1. Cool down Hot water to 30*c direct to ice cans.

2. Chill the cool down hot water to 0*c then to ice cans.

I'm asking this because if it really work can save about 3k at building chilling water system.