By Giles Hudson | CBSDFW.COM

COPPELL (CBSDFW.COM) – Quietly and without fanfare, Whataburger restaurants across the state are changing the decades-long way customers are served shakes and malts.

The San Antonio-based company confirmed to CBS 11 it is switching to a standardized process rather than the more custom service it used to provide.

In a statement, the company said speed and consistency were the main reasons for the change.

“We’re currently in the process of updating our shake machines to give us the ability to create a more consistent shake and deliver it quickly,” the company said. “The new machine uses the same shake recipe our customers know and love, but does not give us the ability to add extra syrup upon request.”

The new machines were introduced to one of the company’s training stores on State Highway 121 at Denton Tap Road in Coppell sometime last year, employees said.

A check of other restaurants in Dallas, Denton and Collin Counties showed just a smattering of the new machines in place.

The company has not said how long it expects the roll-out to take place.

You can follow Giles Hudson on Twitter @cbs11giles.