Cold store work is often specified once, in summer, and never reviewed. The temperature is known, the workforce is issued with insulated jackets, and the practical problems appear later: workers who are comfortable standing still but overheated while picking, garments that absorb condensation and lose their insulation, and sleeves that are pushed up because they obstruct the task. The specification has to be written around the working pattern rather than around the temperature alone.
What This Environment Does to People and Equipment
Equipment suffers alongside people, and that matters for the specification. Insulated garments absorb moisture at the cuffs and shoulders, seams stiffen in the cold, and closures become difficult to operate with cold hands. Vehicles develop ice on load wheels and controls, and the floor near doorways alternates between wet and frozen. A programme that ignores those conditions will find the garments failing at the points the worker touches most, which is usually where the fit and the closure are already under strain.
The dominant conditions in a refrigerated facility are low temperature, moisture and movement between zones. Temperatures vary from chilled areas to freezer rooms, and the exposure is frequently intermittent: a worker enters, performs a task, leaves, and returns several times a shift. Each transition brings condensation on clothing and equipment, and ice can accumulate on surfaces, on steps and on vehicle load wheels as well as on the floor.
Work rate varies more than in most environments, which is what makes the specification difficult. Active picking generates heat and rewards lighter clothing; driving a pallet truck or working at a chilled packing station generates very little, and the same clothing can be inadequate. Add moving vehicles in shared aisles, restricted visibility through racking, and hygiene requirements in food facilities, and the garment has to satisfy several constraints at once.
The Hazards That Drive the Specification
The activity level deserves a specific place in the assessment because it changes the correct answer more than temperature alone. A worker who is walking, lifting and turning generates heat continuously, and clothing that suits them will be inadequate for a colleague operating a truck in the same aisle. Recording the two patterns separately, and specifying for each, is what prevents the common situation where the more active workers remove layers and then spend their break in a cold welfare area without insulation.
- The temperature in each area and the duration of exposure, including how often the worker moves between zones.
- The work rate: continuous movement, intermittent activity or largely static tasks.
- Moisture sources, including condensation, melting ice, wet product and the humidity change at doorways.
- The floor condition, since ice near doorways and around chilled areas is a slip hazard as well as a cold one.
- Vehicle traffic in the aisles, which brings a visibility requirement into the same specification.
- Hygiene requirements, where the facility handles food and clothing has to be compatible with the cleaning regime.
- Ergonomic constraints, because bulk that restricts reaching, bending or climbing changes how the work is done.
The employer’s assessment sets the requirement, and the supplier documents the insulation, moisture handling and any additional properties the garment carries. Where a facility has several zones, the requirement is normally expressed per zone, with the clothing graded to match.
Controls That Come Before the Equipment
Task sequencing is worth reviewing alongside those measures, because moving a static task into a warmer position often removes the need for heavier clothing.
Cold exposure is reduced first by the building and by the way work is organised. Door management and air curtains that limit cold air loss and condensation, insulation and draught control, heated welfare areas close to the cold zones, task rotation that limits continuous exposure, scheduled breaks in warm areas, and the design of the work so that static tasks happen in warmer positions all reduce the exposure. Anti-slip flooring and clearing of ice address the associated slip hazard.
Administrative controls follow: entry procedures that keep doors closed, rules on how long a worker may remain in the coldest areas without a break, and training that explains why wet clothing is a problem rather than a minor discomfort. Personal protective equipment is the last line of defence, and in cold stores it works best when the earlier controls have already reduced how long the worker has to be exposed.
What the Equipment Has to Do Here
Fit and freedom of movement are part of the protection and not only a comfort matter. A garment that restricts reaching into racking will be unzipped, and one that is too long can catch on equipment or be trapped when a worker climbs onto a pallet truck. Insulated clothing is inevitably bulkier than ordinary workwear, so the size range and the cut matter more here than in most specifications, and a fitting step before bulk issue is worth the time.
Insulated clothing for cold storage has to trap air, manage moisture and allow the worker to perform the task. That combination produces a garment with insulation that stays effective when damp, an outer layer that resists moisture and vapour, and a cut that allows reaching, lifting and bending without exposing the lower back or restricting movement. Where vehicles share the aisles, the outer garment also has to satisfy the site’s visibility requirement, and where food is handled, it has to be compatible with the hygiene regime.
The materials behind these choices, and how layering works in practice, are covered in Shield Wings’ article on cold weather work clothing, layering and materials, which owns that topic. What matters at specification stage is that the requirement is written per zone and per task, and that moisture management and drying are treated as part of the protection rather than as facilities questions.
Selection Criteria Specific to This Sector
| Area or task | What dominates | Clothing that follows | What to verify |
|---|---|---|---|
| Frozen store, active picking | Low temperature with high work rate | Moderate insulation with moisture management and freedom of movement | Fit trial with the task performed, not just standing |
| Frozen store, vehicle operation | Low temperature with static work rate | Higher insulation, with visibility properties for the aisles | Visibility class and the garment’s fit when seated |
| Chilled preparation and packing | Moderate cold, wet product, hygiene requirements | Lighter insulation with a washable, food-compatible design | Hygiene compatibility and the laundry arrangement |
| Doorways and loading areas | Transitions, condensation, ice, vehicle movement | Moisture-resistant outer layer with visibility, and footwear for wet and icy floors | Floor condition and the slip properties of the sole |
| Maintenance in cold areas | Static work, awkward positions, longer exposure | Additional insulation and protection for kneeling and reaching | Task duration and the welfare arrangements |
| Supervision and visitors | Intermittent presence without local adaptation | Garments available at the entry point, in the sizes needed | Availability, condition and the entry procedure |
Two rules complete the table. Insulation and moisture management are specified together, because wet insulation does not perform. And the clothing requirement is graded by area, because a single garment for a whole facility will be too warm in one zone and inadequate in another, which leads to workers removing layers in the coldest place they work.
Typical Specification Failures in This Sector
One failure is easy to miss because it looks like compliance: garments are issued, worn at the start of the shift, and then progressively shed as the work becomes more physical. The pattern is a sign that the specification was written for a static worker in a cold room, when the actual task involves movement and heat. Where that happens repeatedly, the useful review is of the task and the insulation level together rather than of the workers’ behaviour.
- Personal clothing under the issued garment. Street clothing worn underneath changes the fit and the moisture behaviour, and it is usually the reason a garment feels inadequate.
- Insulation without moisture management. Condensation and wet sleeves remove the benefit of the insulation within hours.
- One garment for every zone. The requirement differs between chilled, frozen and doorway areas, and the compromise usually fails in the coldest place.
- Bulk that obstructs the task. Clothing that restricts reaching or climbing is pushed up, unzipped or abandoned for the difficult part of the shift.
- No drying arrangements. Wet garments are stored overnight and put on the next morning, which is both uncomfortable and less protective.
- Visibility overlooked where vehicles operate. Cold store aisles are shared with powered equipment, and the same risk applies as in any warehouse.
- Gloves and footwear left out. Cold hands reduce dexterity and cold feet are the most common reason a worker abandons a procedure.
Building the Full Set Rather Than Buying Pieces
Where a facility shares aisles between pedestrians and powered equipment, the visibility requirement belongs in the same garment specification rather than in a separate vest. A vest worn over an insulated jacket changes the fit, can ride up, and often disappears when the worker takes the jacket off in the chilled area next door. Specifying the outer layer with the visibility property built in keeps the requirement intact through the shift.
The set for cold storage work includes the insulated body garment, gloves selected for the temperature and the task, footwear suited to cold and often wet floors with the slip properties the surface requires, and head protection where the environment calls for it. Where the facility handles food, the layering has to be compatible with hygiene, and where vehicles operate, visibility properties are part of the outer garment rather than an extra vest. The garment families are set out in Shield Wings’ cold weather clothing range and in the wider body protection category.
Shield Wings manufactures insulated and protective workwear at a Guangdong production base and supports cold store operators, food processors and distributors with insulation selection, size ranges and the documentation each garment carries.
The specification that works in a refrigerated facility is written by zone and by task, keeps the insulation dry, and allows the worker to perform the job without overheating or losing the coverage that protects them.
Frequently Asked Questions
What should workers wear in a cold store?
Insulated clothing selected for the temperature, the duration of exposure and the activity level, with a layer that manages moisture and an outer layer that resists the conditions in the store. Gloves and footwear suitable for the low temperature are part of the same specification, and where vehicles operate in the aisles, visibility requirements apply as well. Comfortable but too light is the usual failure, because workers remove what they cannot work in.
How does moving between cold and warm areas affect the choice?
Frequent transitions change what clothing is practical. Workers who spend part of the shift outside the cold area, or who move between chilled and frozen zones, need garments that can be added or removed quickly and stored conveniently, and they need a place to put them that is not the floor of an aisle. Individual task patterns should be described in the assessment rather than averaged.
Do insulated garments need to be waterproof?
Moisture management matters as much as insulation, because wet insulation loses much of its ability to trap air and keep the wearer warm. In a cold store the sources are condensation, ice melting on sleeves and gloves, and the humidity that comes with moving between temperature zones. An outer layer that resists moisture, together with drying arrangements between shifts, protects the insulation the specification depends on.
Why does activity level matter when specifying insulated clothing?
Because the heat a worker generates changes the requirement substantially. Picking and stacking are active tasks that produce heat, while operating a pallet truck or working in a chilled packing area is more static, and clothing that suits one can be far too warm or too cold for the other. Where the workforce performs both, two specifications or an adjustable layering arrangement usually works better than a single compromise.
How should cold store clothing be inspected and stored?
Inspect for damage, compressed insulation, contaminated or wet linings, and failed closures, since the protection depends on the insulation staying dry and in shape. Storage should be dry and out of the cold, with enough space that garments are not crushed together, and sufficient drying capacity for the workforce so that wet garments are not put on at the start of the next shift.
Equipping a cold store or freezer area?
Send the zone temperatures, the tasks and the time spent in each area. Shield Wings confirms the insulation options, the garments and gloves that match them, and the documentation each carries.
External references: 29 CFR 1910.132 hazard assessment and equipment selection, 29 CFR 1910 Subpart I, CCOHS PPE answers, UK HSE personal protective equipment guidance, CEN-CENELEC standards portal, Regulation (EU) 2016/425.
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