A Moroccan family that buys its olive oil by the five-litre tin has a practical question every harvest: should it buy from the mill now or wait for prices to settle? A forecast of a good crop offers one clue. The grower leaving the mill with 100 kilograms of pressed olives and a receipt showing how many litres they yielded has another.
Those two pieces of information measure different things. The national harvest tells buyers how much fruit may be available. The milling receipt shows how much oil one batch actually produced. Between the two lies much of the explanation for why a litre can cost more than last year, why two nearby mills can quote different prices, and why the supermarket may take longer to adjust.
image caption: Illustration of fresh olive oil flowing from a mill into a steel container beside a crate of harvested olives in Morocco.
What Morocco’s two-million-tonne olive estimate tells us
In May 2026, Morocco’s government portal reported an Agriculture Ministry estimate of 2 million tonnes of olives for the 2025–26 agricultural season, up 111% from the previous season. The figure was a forecast for harvested olives. It included fruit that could be sold as table olives as well as fruit destined for mills. Moroccan government’s agricultural outlook maroc.ma
That distinction matters to anyone trying to read a price forecast from a harvest headline. To estimate the oil available for sale, a buyer would need to know how much fruit went to mills, how much oil those mills recovered and how much producers chose to sell. A family that presses its own olives and keeps the oil for the year contributes to production without putting those litres on a shop shelf.
Geography matters as well. A mill surrounded by growers with abundant fruit can buy locally. Another mill may have to send a truck farther afield to secure enough olives to keep its equipment running. The national total combines both situations. Rainfall, irrigation and differences between growing areas help explain why the same season can feel generous to one producer and disappointing to another. These variations are part of the wider story of agriculture and Morocco’s economy. www.internationaloliveoil.org
At the mill, four litres can change the economics of a batch
Imagine that a cooperative buys 100 kilograms of olives for $60 and pays $12 to have them milled. Before anyone orders a bottle, prints a label or arranges a delivery, the cooperative has spent $72. The cost of each litre now depends on what comes out of the separator.
| For a 100 kg batch | Higher-yield batch | Lower-yield batch |
|---|---|---|
| Cost of olives | $60 | $60 |
| Milling charge | $12 | $12 |
| Oil recovered | 20 litres | 16 litres |
| Fruit and milling cost per litre | $3.60 | $4.50 |
The dollar amounts and yields are illustrative. They are not current Moroccan market quotations.
The second batch yields 20% less oil, yet its cost per litre rises 25%. The reason is simple: the same $72 bill is divided among 16 litres instead of 20. For a five-litre tin, the difference is $4.50 before the tin itself, delivery or the seller’s margin enters the calculation.
The example also explains why the cheapest olives per kilogram can be the more expensive purchase for a mill. Suppose the cooperative negotiates the fruit bill on the lower-yield batch down from $60 to $52. Including milling, it now spends $64 for 16 litres, or $4 per litre. It saved $8 when it bought the fruit, but its oil still costs more to produce than the $3.60-per-litre batch.
Why equal weights of olives yield different amounts of oil
For a grower booking a milling date, oil yield means the amount of oil recovered from a given quantity of fruit. Olive variety, stage of ripeness and the mill’s ability to extract the oil all matter. The International Olive Council’s harvest guidance recommends examining fruit maturity, oil content, extraction capacity and sensory characteristics when assessing the right time to harvest. International Olive Council harvest guide www.internationaloliveoil.org
For a cooperative, that creates a commercial decision. One buyer may value the flavour of an oil produced at a particular stage of ripeness. Another may care most about how many litres a batch will yield at an agreed price. A useful milling record therefore puts three details together: the date, the kilograms delivered and the litres recovered. A record of the milling fee alone cannot explain why one season was more profitable than another.
Why the grocer’s price can lag behind the mill’s
Consider a grocer who bought 60 bottles near the end of a lean season. The first deliveries from a better harvest arrive, and a nearby mill begins selling fresh oil for less. The grocer still has a shelf of bottles bought at the earlier price.
Cutting the price immediately may help sell those bottles before customers switch sellers, but it reduces the margin on stock already paid for. Holding the price protects that margin only if customers continue buying. A shop with ten bottles left faces a different decision from one with sixty. This helps explain how prices can fall at the mill while moving more slowly in town. The same issue arises for many small businesses managing stock and cash flow.
The journey also changes what the buyer is paying for. A customer collecting oil at the mill in a reusable container faces a different set of costs from a customer buying a labelled glass bottle in a neighbourhood shop. The second purchase includes packaging, handling, distribution and the convenience of buying a smaller quantity close to home. A rise in diesel prices can add to the delivery bill, but the effect per litre depends partly on how much oil shares the trip. The same calculation appears in how fuel costs affect food deliveries in Morocco.
How to compare two offers before buying
Start by converting both offers to a price per litre. A 750-millilitre bottle priced at $6 works out to $8 per litre. A five-litre tin priced at $35 works out to $7 per litre. On the face of it, the tin saves $1 per litre.
Now include the cost of getting it home. If buying the tin requires a special trip that costs the household $5, its effective cost becomes $40 for five litres, or $8 per litre. If the family was already going to the mill, the calculation changes again. Only the additional cost of collecting the oil belongs in that comparison.
Finally, compare the grade shown on each label, the harvest information where available, the container and whether delivery is included. A household that uses oil slowly may prefer a smaller bottle even at a higher price per litre. A household buying its annual supply may find the larger tin more economical. Both choices can make sense.
When the next harvest estimate makes headlines, the most useful follow-up question at the mill is a modest one: “How many litres did you get from 100 kilograms this season?” Pair that answer with the price of the fruit and the milling fee, and a change in the price of the family’s five-litre tin becomes much easier to understand.
Sources and Further Reading
Morocco’s official government portal (Maroc.ma), May 2026. The portal reported the Ministry of Agriculture’s estimate of 2 million tonnes of olives for the 2025–26 season, an increase of 111% from the previous season. The forecast refers to the weight of harvested fruit. Read Morocco’s 2025–26 agricultural outlook (French). Maroc.ma
International Olive Council — Technical guide to harvest timing and oil yield. The guide explains how growers and mills assess fruit maturity, oil content and extraction capacity when deciding when to harvest. Section 2 covers ripeness and harvest timing, and section 6 describes how processing yield is assessed. Read the technical guide (English PDF). internationaloliveoil.org
International Olive Council — Olive oil and table olive market statistics. The Council publishes separate figures for olive oil and table olives, including production, consumption, imports and exports. These figures help readers compare Morocco’s oil output across crop years. Explore the IOC market statistics. International Olive Council
Note on the price examples: The dollar amounts, milling fees and batch yields used in this article are hypothetical. They illustrate how to calculate the cost per litre. Actual prices and yields vary by grower, mill and season.