Scale, coffee systems and the ice maker

01

What scale does to an ice maker

Scale builds in exactly the places an ice maker cannot tolerate it: the inlet screen, the fill tube and the mould. A blinded screen shortens the fill, so the cubes come out small. Scale in the mould stops the harvest releasing cleanly, so the motor buzzes and the batch stays put. Both read as a failed ice maker and both are a water problem wearing a costume.

A machine cleaned and rescaled with the same supply behind it will be back in the same condition within a season. The filtration is the fix; the clean is the tidying up afterwards.

02

One regime for the whole kitchen

The sensible arrangement is a filter chosen for what the supply actually contains, sized for the combined draw of everything on the line, and changed on an interval that matches the water rather than the manual. That single decision usually resolves the coffee system’s descaling frequency and the ice maker’s cube quality together.

The Saugus check

• Fill volume timed at the ice maker, and pressure measured at the appliance
• Inlet screen and valve inspected for deposit
• Fill tube and mould checked for scale, harvest cycle timed end to end
• Filter type, age and capacity against the number of appliances on the line
• The refrigeration cabinet itself, since a cooling fault often rides along