Which type of warehouse storage does my product actually need?
Ambient, temperature-controlled, or certified?
5 min read · Updated August 1, 2026
Which type of warehouse storage does my product actually need?
Warehouse storage sits in three broad tiers. Ambient means no climate control: the building is dry and usually heated in winter, but no temperature band is maintained, and this suits most dry goods. Temperature-controlled means an actively maintained band, whether chilled, frozen or a specific range, and it costs materially more because the building runs plant to hold it. Certified means the facility holds a third-party audited food-safety accreditation such as SQF, BRCGS, AIB or GMP, which is a documentation and audit standard rather than a physical property of the building. Certification is usually driven by the requirements of the buyer's own customer rather than by the goods themselves, so two identical pallets can have completely different storage requirements depending on who they are being sold to.
Most people asking for "food-grade storage" do not need a different building. They need a building that can pass someone else's audit — which is a different problem, and it is worth knowing which one you have before you start calling providers.
Here are the three tiers and, more usefully, what actually triggers the third.
Ambient
No maintained temperature band. The building is dry, secure and typically heated enough to stay above freezing in a Canadian winter, but nobody is holding it at a number.
This covers the large majority of warehoused goods: packaging, building products, industrial supplies, consumer durables, most dry consumer goods. If your product does not have a temperature specification on its documentation, this is almost certainly your tier.
Temperature-controlled
An actively maintained band — chilled, frozen, or a specified range. The building runs refrigeration plant continuously, monitors it, and alarms when it drifts, and that ongoing cost is why the rate is materially higher than ambient.
Worth being precise here rather than saying "cold". Chilled and frozen are different operations with different equipment, and "must not freeze" is a third requirement again that a heated ambient building may satisfy without any refrigeration at all.
If your real requirement is "must not freeze", say that rather than asking for temperature-controlled. A heated ambient floor often covers it at a fraction of the cost.
Certified — and why it is usually not about your product
Certification means the facility has been audited against a third-party food-safety scheme — SQF, BRCGS, AIB, GMP, and the GFSI-benchmarked schemes above them. In practice that means documented pest control, sanitation schedules, allergen segregation, lot traceability, recall procedures and receiving inspection, all evidenced and audited.
The important part: it is rarely the product that requires it. It is the customer. A national grocery chain or a large brand owner will require its suppliers to store with a certified facility as a condition of the contract, and that requirement flows down the chain. The same pallet of shelf-stable product can need a certified building for one buyer and not for another.
- Selling into a national grocery or big-box programme — expect certification to be required
- Selling direct to consumers, or to independents — usually not required
- Ingredients going into someone else's manufacturing — depends on their quality programme, ask them
- Primary food packaging — often requires it even though it is not food
Where we sit, plainly
Our two warehouse floors are dry ambient, and Vancouver is heated. Neither holds SQF, BRCGS, AIB or GMP, so if your customer requires a certified facility we are not the right building and you should not spend time finding that out at qualification.
Chilled and frozen is a different matter: that runs at Rolls Right Cold Storage in Vancouver, which is HACCP certified and food grade. Packaged beverage we handle on its own programme. Ambient food more generally is not what these floors are built around — tell us what you are holding and you will get a straight answer rather than a maybe.
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