Selling fresh and frozen food online poses a completely different refrigeration problem from traditional retail: small orders, many delivery points, short delivery windows, and a last mile that is almost impossible to control. A cold store serving this model therefore has to be designed differently.
How it differs from a traditional distribution centre
A traditional distribution centre ships by the pallet, in large batches, to a small number of receiving points. A store serving e-commerce ships individual orders — a few items each, hundreds or thousands of orders a day.
Three direct consequences:
- Staff spend far longer inside the cold store, because they pick item by item for each order instead of moving whole pallets
- The door opens constantly as pickers move in and out
- The packing area becomes mandatory, not optional
The picking area: the item most often left out
This is the biggest difference. In a traditional store, someone goes in, takes the goods and comes straight out. In an e-commerce store, pickers spend most of their shift inside the cold room.
That creates a working-conditions requirement: the picking area should be separate from the storage area and held at a temperature low enough to protect the goods but workable for people over a full shift. This layout is both safer for staff and reduces how often the storage room door is opened.
Packing and keeping products cold in transit
This is the link where a business loses the most control — the goods leave the store and pass to the carrier, usually with no active refrigeration.
- An enclosed packing area with temperature control, so goods do not warm up while being packed
- Passive cooling: insulated boxes, gel packs or dry ice depending on the temperature required
- Goods chilled down far enough before packing — an insulated box holds temperature, it does not bring it down
- A set quantity of coolant based on the expected delivery time for each route
A multi-temperature store is close to mandatory
An online food order typically spans several groups: fresh vegetables, frozen meat and fish, dairy and chilled goods, sometimes dry goods too. A business cannot run four separate stores in four locations.
The multi-temperature store model — several rooms at different temperatures within one building — solves this, while making better use of the land and costing less to build than separate facilities.
Managing by expiry date
For online food retail, picking by expiry date matters more than picking by order of receipt. What arrived first does not necessarily expire first, and delivering a product close to its expiry date is a risk to both reputation and returns cost.
That means the store has to manage down to batch and expiry level, not just product level — which in turn drives requirements for the layout and for the management software.
Handling returns
The online channel has a return rate the traditional channel does not. With food, returns cannot go straight back into stock like ordinary goods — you need a separate area to inspect each batch and decide what happens to it.
Without that area, returns either get mixed back in with good stock, or sit somewhere with no temperature control. Both are real risks.
Checklist of what you need
- A multi-temperature store, with rooms zoned by product group
- A separate picking area with suitable working conditions for staff
- A temperature-controlled packing area
- A quarantine area for returns and goods awaiting inspection
- High-Speed Door or air curtains for high-traffic entry points
- Temperature monitoring for each room
- Batch and expiry management down to individual product level
Tân Long designs and builds cold stores for distribution and online retail models, including multi-temperature zoning, picking areas and turnkey construction.
Frequently asked questions about cold storage for online food retail
How does a store for online retail differ from a traditional distribution centre?
A traditional store ships by the pallet to a small number of receiving points. An online store ships individual orders, hundreds a day, so staff spend longer inside the cold room, the door opens constantly, and a packing area becomes mandatory.
Why do you need a separate picking area?
Because pickers spend most of their shift inside the cold store. Separating the picking area from the storage area and holding it at a workable temperature protects working conditions for staff while reducing how often the storage room door is opened.
How do you keep products cold during delivery?
Insulated boxes combined with gel packs or dry ice depending on the temperature, with quantities set by the delivery time for each route. The key point is that goods must be chilled down far enough before packing — an insulated box holds temperature, it does not bring it down.
Why do you need a multi-temperature store?
Because one order typically contains fresh vegetables, frozen meat and fish, chilled goods and sometimes dry goods. A multi-temperature store holds all of it in one building instead of four stores in four locations.
Why does picking by expiry date matter more than picking by order of receipt?
Because what arrived first does not necessarily expire first. Delivering a product close to its expiry date is a risk to both reputation and returns cost, so the store has to manage down to batch and expiry level.
How are returns handled?
You need a separate quarantine area to inspect each batch and decide what happens to it. Without it, returns either get mixed back in with good stock or sit somewhere with no temperature control — both are real risks.
Related pages
- Logistics cold storage: the multi-temperature model
- Cold store management software
- Arranging goods in a cold store by FIFO and FEFO
- Temperature monitoring and traceability for the cold chain
- Cold Store High Speed Door
Is your business in need of a survey, upgrade, or new design for your industrial refrigeration system?
With over 18 years of practical experience leading more than 29 major national projects, Tan Long's team of HVAC engineers is committed to providing accurate thermal load calculations, optimizing the COP efficiency coefficient, switching between natural refrigerants NH3/CO2, and saving 20–30% in operating electricity costs.
Engineer Nguyen Toan Thinh (Technical Director)
With over 18 years of practical experience in directing, consulting, designing, and constructing heavy industrial refrigeration systems, ASRS automated warehouses, and IQF freezing systems across more than 29 major national projects.
