Construction

“Ancient cold storage depot found in Sagalassos”

Recently we heard that a “cold store” had been unearthed at the ancient city of Sagalassos, in Southern Turkey. The large building on 2 levels near the main market place is being excavated by Professor Jeroen Poblome of the Belgian Leuven Catholic University. The city became important during the Hellenistic period after annexation by Alexander the great in 335 BC. It became the “First City”, in Asia Minor during Roman times but was then abandoned. We made contact with Professor Poblome to find out why he thought this building had been a “cold store” in the modern sense of the term as this would make it easily make it the oldest in the world. As far as we were aware, Francis Bacon circa the 1620’s in London was the first known European to conduct experiments on the use of snow for preserving meat.  He used chickens for his experiments and died from a chill shortly afterwards. Clarence Birdseye in the 1920’s introduced quick freezing making frozen food a commercial success after watching the Eskimos. Although the Americans would dispute this, it seems that James Harrison of Geelong, Australia was the first to realise that evaporating gas could make things cold. In his case it was the lead type that he was cleaning with ether at the newspaper which he owned. This was in the 1840’s. Unfortunately Professor Poblome, while somewhat surprised by our interest, confirmed that there was no actual evidence of refrigeration. The rooms in the structure had thick walls and few doors, which would have kept the produce inside relatively cool. However there was no sign of ice or snow being used to keep the rooms cold. He did however mention that the wealthy inhabitants would probably have used ice or snow to cool their wine, and there is written evidence for this, so they too enjoyed their wine cold especially on a hot day. For the full story visit: http://archaeologynewsnetwork.blogspot.no/2015/07/ancient-cold-storage-depot-found-in.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed:%20TheArchaeologyNewsNetwork%20(The%20Archaeology%20News%20Network)#.VaUQP2d00id  

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Should water tanks be a compulsory feature at all cold stores and warehouses?

At 54% the Western Cape dam levels are way down on last year. If it doesn’t improve soon there will be problems next summer. Water shortages are something that the Australian cold storage guys have experienced. Their big cold stores all have water tanks, I have seen them at both Oxford and Montague, where they find it profitable to use rain water (suitably treated) in the condensers. One of the tanks pictured below is for the sprinklers and they are not allowed to use this water for anything else, but the others catch rain water off the roof. As far as we know there are no cold stores in SA that do the same thing. With the low rainfalls we are surprised that this has not become a mandatory requirement. If there are any cold stores catching rain water we would be very interested to get more information. Please contact James Cunningham on email james@barpro.co.za  

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Visit to Montagues New Cold Store at Truganina outside Melbourne, Australia

Montague Cold Storage has been in business for over sixty years. Family owned, Montague’s started life as a supplier of fruit and flowers before becoming one of the largest cold store operators in the states of Victoria and Tasmania with over 140,000 pallet spaces available. Phase 1 of Montague’s new Truganina store was commissioned at the end of 2014 and has a capacity of 30,000 pallet spaces. I was delighted to be shown around the facility by the Facilities Director, Glenn Edwards.   LOADING AREA                                                                                     LOADING DOCKS The loading docks at Truganina have been designed for maximum efficiency and in line with Health and Safety legislation. After entering the site through a special entrance, the trucks wait at a marshaling point until directed to a particular loading bay. Backing up to the loading bay is assisted by ground guides which make sure that the rear of the truck is correctly placed. Then the trailer’s rear protection bar is locked in position. Until the lock is in place, the internal loading bay door will not open nor can the dock leveler be activated. The lock prevents the truck from moving away from the loading dock with a forklift inside. The driver then enters vestibule of the loading dock through the door and opens the truck doors. The air seals activate to prevent the ingress of warm moist air, the dock leveler is put into position and the internal door opens. While waiting for the truck to be loaded/offloaded, the driver has access to bathroom facilities and a canteen. He is observed by the cold store staff as they must sign off that he is fit to drive the truck to its next destination. As his load is processed, the driver stands on an observation platform in the loading dock to check the pallets. When the doors are sealed and the paperwork completed, the lock is released and the truck leaves via a gate that only opens when the cold store staff have checked that everything is in order.                                                                                                                                                                               FREEZER ROOMS The freezer rooms are constructed from PIR panels. The local fire authority required that the freezer ceilings be fitted with sprinklers. Had the cold store been placed on the other side of the road, it would have fallen under another fire authority making sprinklers unnecessary. Hitting a sprinkler head will not in itself activate the system. Excessive heat must also be picked up by sensors. The freezer rooms are equipped with double deep racking. Case picking is an important aspect of the business and takes place inside the freezer. Product is supplied to the pick faces via roller beds. Stackers are not allowed in lanes where case picking takes place. Racked picking bays have been made wider than normal to allow for better access to the cases. Space has been created underneath the roller beds to allow room for the picker’s feet. The racking is of high quality and well protected. The upper levels have guides to assist with placing the pallets.                                                                                                                                                                     MATERIALS HANDLING EQUIPMENT Stackers with extendable forks are used to place and retrieve pallets in the double deep racking. Their front wheels must be able to go under the bottom level of pallets. Cases are picked via man on pallet movers. Stand on forklifts are used in the trucks. The stackers have no heated cabs and the fork lifts/pallet movers are all of the stand-up variety. High quality freezer clothing is worn by all cold store employees. The battery bay is well thought out including intelligent chargers which include automatic maintenance of battery water levels. The pallet movers have inbuilt printers and the scanners are attached to the machine with extendable restraints. Every machine has a driver control device, which limits who can drive what, and also sends information regarding impacts to the responsible manager.                                                                                   COLDSTORE CONSTRUCTION FEATURES Some cold store construction features are attached for interest.                                                                                                                                                                                                      

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