Cold storage is a storage of food in a cold place for preservation. It facilitates to minimize waste and economize.

1. Gnana Chandana
2019027047

2. 2
For storage of single
commodity
Mostly operate on seasonal
basis
Apples, Potatoes, Chillies
Bulk cold stores
Multipurpose cold
stores
For storage of variety of
commodities
Operate every month of the year
Fruits, Vegetables, Spices, Pulses,
Milk products
Small cold
stores
Designed for
precooling facilities
Mainly for export
oriented items like
grapes
Fresh fruits,
Vegetables
TYPESOFCOLDSTORAGE

3. Frozen food stores
Can store processed or non
processed foods
Fish, Meat, Poultry, Dairy products,
processed fruits and vegetables
Ripening
chambers
Equipped with humidity,
temperature controllers
and air circulation
systems
Mangoes, Bananas
CA stores
Regulates the
concentration of O2,
CO2, N2, temperature
and humidity
Apples, Pears, Cherries
Walk in cold
stores
Also called as “mini units”
For perishable items
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5. Size
To design the size of cold storage
following things are to be
considered –
• Volume of product to store
• Volume required per product
container
• Space for mechanical or manual
operation
• Available site space
Shape
• Buildings should be made to
orient the longer walls facing
N-S direction
• W-E walls should have good
plantation
• Surface area to volume ratio –
less
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6. Constructio
n
Floor
• A suitable concrete slab is
laid on polythene or other
sheet type of water barrier
over a layer of hard core.
• Underfloor ducts may need to
be insulated in the same way
as the foors, depending upon
overall design.
Roof
• Piched roofs are preferred
rather than flat roofs.
• Pitched roofs are built with
steel, timber or concrete
fames with purlins carrying
sheet materials such as steel,
asbestos or aluminium.
• Laps and joints at ridges,
verge and eaves be sealed
and bedded closely.
• Ventilation should be
provided.
Ceilings
• It is usually formed from
timber joints spanning
between chamber walls,
trusses or special steel and
timber beams.
• It is essential to design the
framework so as to
adequately accommodate the
loads to be applied and to
ensure a rigid ceiling.
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7. 7
Floor Roof Ceilings

8. Cold storage doors
• Doors are usually constructed with a core of
insulation material covered on both sides with good
and sheet metal and screwed to wooden
frames,the joint being sealed with a sealing
substance.
Insulation
• Insulating materials are incorporated to reduce
heat losses.
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