And the firm, which distributes the Scotsman range of ice machines, has provided a number of tips to help licensees ensure their ice makers are in the best condition.
Cleaning the air filter is an important first step for operators, said the firm.
And publicans should keep grills clean and clear of obstructions to maintain constant airflow.
Water filters, claimed Hubbard, need to be changed every six months to ensure maximum productivity.
The firm advised operators to check their ice maker has been de-scaled and sterilised recently.
It also pointed out that anyone considering buying a new machine should look for a brand that provides after-sales support.