I had a building job back in the nineties, working on a new building for a frozen food company.
While assessing the various prcedures in freezing peas, beans etc, they had a special water spray attachment on the line, for 'glazing'! All it did was spray the veg just before freezing, so the stuff didn't stick together.
I never, ever, even thought of mentioning to my client that the 'glazing' retail cost was exactly the same as the peas and beans, all rolling loosely around in their bright green packaging...