When are pistachios harvested in Spain?

The pistachio harvest is one of the most awaited moments of the year for any farmer dedicated to this crop. After months of care and constant revisions, the moment arrives when the effort becomes fruit... literally. Now, however, when are pistachios harvested in Spain?

The quick answer is that the harvesting season is between late August and early October, The interval between planting and harvesting can be extended until the end of that month in some areas. This interval depends largely on factors such as climate, the variety planted and the location of the farm.

To know exactly what is the ideal time for harvesting is fundamental: doing it too early can result in immature pistachios with a poorer flavor, while delaying the harvesting process entails risks of quality loss, fruit drop or humidity problems.

Therefore, in this article we are going to explain not only the key dates of the campaign, The main objective is to know not only the signs that indicate that the pistachios are ready, how to harvest them and what steps to take afterwards so that your harvest maintains the highest quality.

What is the pistachio harvest date in Spain?

In Spain, pistachio harvesting generally begins at the beginning of the year. end of August and extends to early October, being the month of September the most common for the season. Even so, there is no single day marked on the calendar, as each plantation may have slight variations depending on its location and growing conditions.

At warmer areas, In regions such as Andalusia and Extremadura, harvesting tends to be brought forward and may begin in the last days of August. On the other hand, in central peninsular regions such as Castilla-La Mancha -the community with the largest pistachio area in Spain- the most common is that the harvest is concentrated throughout September, extending even until the first days of October.

This time range may also be influenced by the pistachio variety cultivar and agronomic management. Varieties such as Kerman, which is very widespread in our country, usually ripen around mid-September, while others may need a few more days to reach the optimum point.

• Campaign start: end of August.
• Campaign peak: september.
• Campaign closingThe following months of the year: early or, in some cases, late October.

Knowing these dates is key, but not enough.

It is not enough to look at the calendar: the actual condition of the fruit must be closely observed. to avoid both early and late harvesting. We will see this in the next block, dedicated to how to identify that the pistachio is ripe and ready to be harvested.

How do you know when pistachios are ripe?

Although the calendar gives us a reference, the real key to a good harvest is in reading the signs that the tree gives us. Each pistachio tree may show a different maturation rate., and being a few days early or a few days late can make a difference in quality and price.

The clearest signs of maturity are:

Pistachio skin color change

Pistachio is covered by an outer skin called the epicarp. (or “soft peel”), which is initially green in color. As the fruit ripens, this shade changes to pinkish or reddish, depending on the variety.

This color change is one of the first clues for the grower.

Ease of tree detachment

A pistachio ready to pick comes off easily by shaking the branch or by gently tapping the tree with a mechanical vibrator. If the fruit resists too much, it is a sign that it has not yet reached its optimum.

Natural opening of the shell

A highly sought-after feature is the open pistachio. The woody shell cracks naturally, leaving the seed visible inside.

When this phenomenon occurs in most fruits, it is an unmistakable sign that the campaign is ready to begin.

Reduction of internal humidity

As the pistachio matures, its water content decreases. This results in a drier and crunchier fruit, ideal for processing. Although this sign is not visible to the naked eye, it can be verified in the laboratory or by the farmer's experience by feeling the fruit.

What happens if you don't pick the pistachio at the right time?

Delaying or advancing the collection is not a simple calendar error: has direct consequences on fruit quality and in the profitability of the operation.

• If it is picked too early:
  • The pistachio will be unripe, with a less intense flavor and a soft texture.
  • The percentage of closed fruits will be higher, which reduces their commercial value.
  • In some cases, they may present stains or defects that affect their presentation.
• If picked up too late:
  • The fruit runs the risk of falling to the ground, losing a large part of the crop.
  • May appear aflatoxin, a toxin produced by fungi that proliferate in humid environments, which, in addition to being dangerous, renders pistachio nuts unfit for consumption.
  • Excess moisture and prolonged contact with the soft skin increase the likelihood of fermentation, which adversely affects flavor and aroma.

Getting ahead means losing quality, and getting behind means losing quantity and fruit health..

Therefore, constant monitoring of the ripening stage and proper planning of the campaign are essential for the success of each harvest.

Pistachio harvesting techniques

Once the ideal ripening moment has been identified, the most delicate part comes: pistachio harvesting.

This is where the farmer must choose the method that best suits his plantation, always seeking a balance between efficiency, cost and care of the fruit.

Manual harvesting

This is the most traditional system, still used in small or family farms. It consists of spreading tarpaulins under the trees and shake the branches with sticks to make the pistachios fall.

• Advantages: does not require expensive machinery, it is a careful method with the tree.
• Disadvantages: labor-intensive, time-consuming and costly in large areas.

Mechanical harvesting

In professional and larger plantations, mechanical vibrators are most commonly used. that are attached to the trunk or main branches. This equipment shakes the tree with precision so that the fruits fall on tarpaulins or harvesting platforms.

• Advantages: faster, less labor intensive, more uniform.
• Disadvantages: initial investment in machinery and the need for training for correct use.

Important considerations

Regardless of the technique used, there are two aspects that should never be neglected:

• Avoid excessive shocks that damage the tree or break young branches.
• Do not leave fruits on the ground, as they are more prone to fungus and contamination.

In short, the choice of method depends on the size of the farm and the resources available, but what should never change is the speed of moving from the field to processing.

What to do after the pistachio harvest?

Harvesting does not end when the pistachios are removed from the tree. In fact, the most decisive step in maintaining quality begins when the pistachios are removed from the tree. just after harvesting.

Pistachio must be processed in less than 24 hours to avoid fermentation problems, skin blemishes or loss of flavor. This means removing the epicarp (the soft skin), washing, drying and sorting the fruit for storage or sale.

The faster and more efficient this process is, the higher the final quality of the pistachio will be.

In addition:

• Keep pistachios in ventilated containers before processing.
• Prevent the crop from piling up for hours in the sun.
• Take them directly to a processing plant to ensure proper drying.

At Pistachos del Valle we know how important this step is. That is why we make available to the farmers our pistachio processing plant, equipped to ensure that each harvest maintains its full quality, freshness and market value.

Tips for a good harvesting campaign

Pistachio harvesting can be one of the most stressful phases of the year for the farmer, because all the work of the season depends on getting it right in a few weeks.

To make the campaign more bearable and, above all, more efficient, a few practical tips should be taken into account:

• Plan ahead for manpower or machinery. Whether you are going to harvest manually or mechanically, you should anticipate how many people or equipment you will need and make sure they are available on key dates.
• Controls ripening by parcels. Not all trees mature at the same rate. It is advisable to check each area of the farm and harvest in a staggered manner, starting with those that reach the optimum point earlier.
• Keep logistics ready. Have bags, pallets, tarpaulins or any other material needed to avoid interruptions in the middle of the job.
• Do not neglect transportation to processing. Once collected, pistachios should be moved quickly to the plant. If you have to wait, better in ventilated containers and in the shade.
• Checks the condition of the fruit after harvesting. Early detection of lots with excess moisture or damaged fruit will allow you to take action before part of the production is spoiled.

Frequently asked questions about pistachio harvesting

Conclusion

The pistachio harvest in Spain is concentrated between late August and October, September is the key month for most farms. But beyond the date, what really ensures the success of the campaign is knowing how to interpret the ripening signals and act quickly so that each fruit arrives in the best conditions at its destination.

Harvesting too early means losing quality, and harvesting too late means losing quantity. That is why having a well-organized harvesting plan and a fast and secure processing in less than 24 hours is what makes the difference between a profitable crop and a mediocre one.

At Pistachos del Valle we accompany the farmers in this decisive step, offering a specialized processing plant which guarantees that your efforts throughout the season will result in the highest quality pistachio.