For maintaining an ample supply of goods, every hotel whether it is a renowned fast food outlet or a five star hotel has a walk in freezer. The huge sized freezer can hold enough stock to cater hundreds of customers in one go. And since a five star hotel has a huge menu to offer, they need to have a lot of variety present at all times. The various kinds of meat alone can be in hundreds of kilos which need to be readily available. For better services and to ensure that their tastes do not contaminate each other, a walk in freezer is specially allotted to vegetables, meat, sea food and cheese. Since these entire items have a special flavor of their own, if they are kept together, they would catch the scent of each other hence losing their own flavor and smell.

The huge freezers are well maintained to ensure that the huge stock of goods does not rot. The constant usage often loosens the pressure rubbers around it. This result in the cold air to escape and the temperature is not maintained. As the cold air escapes, the temperature rises and this is a dangerous situation because everything in it can be destroyed. If by accident anything of foul odor reaches the customer, the hotel can be in a real disaster. Maintaining quality is the first priority of every hotel that aims for highest.

To ensure that the freezers are in perfect condition and that there is no leakage either in the body or the rubber pads, the maintenance team performs a procedure known as checking the tightness of hatch with ultrasound. The name has been derived from the maritime industry because this method was first adopted by the maritime industry. The method’s accuracy and the undeniably perfect results obtained from it have forced other industries to adopt it also.

The procedure is performed by using the ultrasonic hatch cover tester which acts just like a hand held scanner but different in shape. As the security hand held scanner beeps when it detects metal, in the case of this scanner it beeps when it fails to find one, or when it detects a leak in the rubber pads that allow the air from inside to escape.

With the hatch cover ultrasonic tightness testing procedure being done in a routine now, the freezers are well maintained. There has not been any report of something rotten reaching the customer’s table because of being kept in high temperature. If it is a human error then there is nothing to blame the technology.