Reefer shortages: why there is never a box when you need one

Your exporter has fruit picked, graded and ready, and no container to put it in. Or the booking exists but the line won’t release equipment. Or the box turns up three days late and the sailing is missed.

Every produce importer has had this conversation, usually in the middle of a season, and it is easy to read as your exporter making excuses. Mostly it isn’t. Reefer equipment is scarce, it is scarcest exactly when you need it most, and the cause is the structure of the trade, not anybody’s incompetence.

It is worth understanding why, because most of the charges in the rest of this cluster exist to manage that scarcity. Once you see that, detention stops looking like a random fee and starts looking like the price of a scarce box.

Why reefers are scarce #

They are a small, expensive slice of the fleet #

Refrigerated containers are a single-digit percentage of the world’s container fleet by TEU. Everything else is dry boxes.

They also cost several times what a dry container costs to buy, because a reefer is a refrigeration machine bolted into a steel frame rather than just the frame. Lines therefore buy them cautiously and hold far fewer spare units than they do dry boxes. There is very little slack in the system to absorb a busy week.

Ships have a hard limit on reefer plugs #

This is the constraint people miss. A reefer needs power for the entire voyage, and a vessel has a fixed number of powered reefer sockets — far fewer than its total slot count.

So a sailing can be full for reefers while half empty for dry cargo. Having boxes on the quay does not mean there is space on the ship. When you are told there is no space and the vessel visibly isn’t full, this is usually why.

Reefers are heavy, and weight runs out before slots do #

A loaded reefer is heavy, and vessels hit weight and stability limits before they fill every slot. When something has to come off, heavy boxes are the obvious candidates — which is one of the main mechanical reasons a produce shipment gets rolled.

The trade is directional, and empties pile up in the wrong place #

Fruit moves from producing regions to consuming ones and does not come back. Chile ships cherries to Rotterdam; Rotterdam does not ship cherries to Chile. So empty reefers accumulate where the fruit was eaten and are needed where it grows.

Repositioning an empty is pure cost — the line pays to move a box that earns nothing, and on the return leg that box still occupies a slot and a powered plug it could have sold to paying cargo. That expense is why equipment gets rationed rather than freely supplied, and why an origin can run dry while boxes sit idle elsewhere.

Boxes sail back empty before your season starts #

Most importers never see this part, yet it explains more about their season than anything else on this page.

The reefer your exporter loads in the first week of the season did not just appear at the packhouse. It was shipped back empty, from a consuming region, weeks earlier — as part of a repositioning plan the line made months before that.

The cycle runs roughly like this. Fruit ships north through the season. Boxes are stripped at destination and returned to depots. In the shoulder before the next southern season the line pushes them back down: empty reefers loaded onto southbound sailings, in volume, on a schedule built from a forecast of what the season will need. By the time the first cherries are picked, the equipment is supposed to already be sitting in Chile.

Two things follow, and both hurt.

The forecast is a bet, and the line pays for being wrong in either direction. If the line positions too few, origins run dry exactly when the first and most valuable fruit wants to ship. If it positions too many, thousands of expensive boxes sit idle through a season, earning nothing. Lines therefore aim closer to the expected case than the peak, which guarantees a shortage in a strong year.

Your empty returns feed next season’s repositioning. A box you hand back promptly goes into the pool being staged for the next southbound push. A box sitting in your yard for an extra week in March is a box that misses a sailing in April and is not in South Africa in May. From a warehouse in Kent the connection feels remote, but it is completely real.

Some of them come back carrying dry cargo #

A line moving an empty reefer south is paying to move nothing. So where it can, it avoids that: the box goes back NOR (non-operating reefer), with the unit switched off, loaded with ordinary dry freight.

It is a sensible trade. The reefer is travelling anyway, the refrigeration is dead weight on that leg, and dry cargo that fits in a reefer pays something rather than nothing. Repositioning stops being pure cost and becomes cost recovery, which is part of why the lanes work at all.

For an importer, two consequences follow.

The box arriving at your exporter’s packhouse may have spent its last voyage full of something else entirely, which is why pre-trip inspection and cleanliness on arrival are not paperwork — see what a reefer is. NOR cargo also has to be stripped and the unit brought back into service before the box is available, so a reefer that is physically in the country is not the same as a reefer that is ready to load.

And it means equipment availability at origin depends partly on a dry freight market you have no visibility of. A season where southbound dry cargo is plentiful is a season where repositioning is cheaper and boxes flow more freely; a thin one is a season where the line is choosier about moving them at all.

Peru is where all of this is most visible #

The Peruvian blueberry ramp is close to the extreme case. Volume is packed into a few weeks, the corridor is one-way (fruit goes north and nothing comparable comes back), and the peak overlaps the Chilean season on the same fleet.

So the equipment has to be pre-positioned almost entirely on the strength of a forecast, moved thousands of miles empty or NOR, and staged before the first pick. When the forecast is low, or the repositioning plan is disrupted by a canal restriction, the shortage hits precisely the first and highest-value weeks of the season. See Peru to Rotterdam.

Diversions feed the same loop from the other end: a fleet covering more sea miles is a fleet with fewer boxes free to reposition, which is one of the ways a rerouting costs you twice.

It also means shortages are visible before they arrive. A repositioning plan disrupted by congestion, a blanked sailing, or a bad forecast shows up as tight equipment at origin at the start of a season — which is precisely when the highest-value fruit is trying to move.

Your season is everyone’s season #

This hurts produce in particular. Southern-hemisphere export windows are sharp and they overlap: Chilean and Peruvian fruit, South African citrus and grapes, all wanting equipment in the same weeks on the same corridors.

Demand for reefers on those lanes does not rise gently. It spikes, every year, on a predictable calendar — and the fleet is sized for something closer to the average than the peak, because boxes idle for nine months are boxes that lose money.

What it actually costs you #

Rollovers. Heavy cargo on a spot rate, loading on a weight-limited sailing during a shortage, is the cargo that gets left behind. When it happens, what you do in the first two days decides most of what it costs.

Short free time. Reefer free time is typically 2–4 days against 5–7 for dry. That is not arbitrary; it is a scarce asset being turned as fast as possible.

Aggressive detention. The reason is the same, and it explains the tariff. With detention the line is not recovering a cost; it is charging you for what your delay costs another customer. Every day you hold a reefer is a day it can’t be repositioned to an exporter who needs it.

Rates that move with the season. Peak-season reefer rates on a producing corridor reflect equipment scarcity as much as slot scarcity.

Missed sailings at origin. This is the failure you never see on your own tracking, because the shipment doesn’t exist yet.

The parts you can influence #

Return empties fast, and be known for it. Its value builds up over time. A line’s exposure is equipment turn time, so an importer with a reputation for prompt returns is a cheaper customer to serve — and that gives you real bargaining power when you negotiate free time. It is also the rare case where the operationally right thing and the commercially right thing are identical.

Negotiate free time, not only rate. Free time is easier to win than rate, and on reefers it is worth more. A line pricing your equipment turn will give days to someone who returns boxes promptly.

Contract on lanes that matter. Contract cargo outranks spot when a sailing is oversubscribed. If a lane is core to your season, being on a contract is what keeps you off the rolled list.

Book earlier into the peak than feels necessary. The calendar and the shortage are both predictable, so booking as though they aren’t is a choice.

Treat “no equipment” as a schedule signal, not an excuse. When an exporter says they can’t get boxes, that is an early warning your shipment is slipping — days before an ETA moves. Ask which sailing they are now targeting rather than waiting for the booking to appear.

Watch for the equipment release, not the booking. A booking without released equipment isn’t a shipment yet. The gap between the two is where a season starts to slip without anyone noticing.

The uncomfortable symmetry #

The box sitting at your warehouse for an extra three days in the middle of peak season is a box some exporter cannot get. Multiply that across every importer doing the same thing and it is a meaningful part of the shortage that raises everyone’s rates the following season.

So prompt empty returns are more than housekeeping. They are the cheapest way an importer has to influence their own future costs, and almost nobody treats them that way.

FAQ #

Why can’t I get a reefer when the vessel clearly isn’t full? #

Because a vessel has a fixed number of powered reefer sockets, far fewer than its total slots. A sailing can be completely full for reefers while there is plenty of room for dry cargo — plug capacity, not deck space, is the binding constraint.

Why is reefer free time so much shorter than dry? #

Because the equipment is scarce and expensive, so lines price your time with it to force a fast turn. Short free time and steep detention are rationing mechanisms, not cost recovery.

Is my exporter making excuses when they say there is no equipment? #

Usually not. Equipment does run out at origin during peak export windows, and empty repositioning is expensive enough that lines ration rather than flood a corridor. Treat it as an early signal your sailing is slipping and ask which one they are now targeting.

When is the shortage worst? #

During southern-hemisphere export peaks, when Chilean, Peruvian and South African seasons want equipment on the same corridors in the same weeks. The calendar repeats annually, which makes it plannable if you book against it rather than against last month’s availability.

Does returning empties promptly actually get me anything? #

Yes, and it is the most underused tool an importer has. Equipment turn time is what a line’s economics rest on, so a customer known for prompt returns is cheaper to serve — which is exactly the argument that wins extra free time in a negotiation.