Buying · 8 min
What to look at on a cold chain show floor, and what to walk past
Three halls, four hundred stands and two days. Most of it is not for you. Here is the part that is.
Storage type Guide
Bag, bulk or box: what cold storage buyers now ask for
Almost every Indian potato store is bag-type. The buyers who pay the most are the ones who no longer accept it.
The short answer
- Bag storage stacks sacks floor to ceiling. It is cheap and it is what most Indian potato stores do, and it produces uneven temperature and humidity between the top and bottom of a stack.
- For table potato that unevenness is tolerable. For processing-grade supply it is not — dry matter, sugar and uniformity all move with it.
- Bulk and box hold condition far more evenly, which is why they are the European and Russian norm.
- The question for an owner is not whether the shift is coming, but whether his particular buyers are the ones who will force it.
01What the three actually are
| Type | How the crop sits | Where it struggles |
|---|---|---|
| Bag | Jute or mesh sacks stacked floor to ceiling | Air cannot reach the middle of a stack evenly; top and bottom differ |
| Bulk | Loose, in a bunker, with air forced through the pile | Needs correct floor and duct design, and a crop that tolerates loading |
| Box | Wooden or plastic pallet boxes, stacked and ventilated | Higher capital cost in boxes and handling equipment |
02Why processors care
A chip or fry line does not reject a consignment because it dislikes the storage method. It rejects it because the potato does not run — colour is wrong, sugars are wrong, sizing is uneven.
Those outcomes track storage conditions closely, and conditions vary far more across a bag stack than across a bulk pile or a box stack. A store that cannot hold a consistent condition cannot serve the customer who pays the most.
03What an owner should work out before converting anything
- Who your buyers will be in three years, and whether any of them are processors.
- Whether your chamber layout and floor can take bulk loading at all, which is a civil question rather than a refrigeration one.
- Handling: box storage needs forklifts, box stock and space to turn, and those costs are easy to underestimate.
- Whether a partial conversion makes sense — one chamber to box, the rest left in bags, so you can serve both markets while you find out.
04Why this site records it
No other directory records whether a store is bag, bulk or box. It is the first thing a processing buyer asks and it is not written down anywhere, which is precisely why it is on every listing here.
05Common questions
- What is bag-type cold storage?
- Bag storage holds the crop in jute or mesh sacks stacked floor to ceiling. It is the cheapest arrangement and the most common in India, but air reaches the stack unevenly, so temperature and humidity differ between the top and bottom.
- Why do processors prefer bulk or box storage?
- Because condition holds more evenly across the store. Processing lines depend on consistent dry matter, sugar and sizing, and those move with storage conditions — a bag stack varies far more than a bulk pile or a box stack.
- Can a bag-type cold store be converted to box storage?
- Often, one chamber at a time. The constraints are usually civil and logistical rather than refrigeration — floor loading, door sizes, forklift access and box stock — so a partial conversion is a common way to serve processing buyers without committing the whole facility.