The 8 levels of mangos classification
From field to container: the tropical logic of classification
The mangos is a “living” fruit that continues to breathe and transform even after harvest. This physiological characteristic, known as climacteric breathing, makes its path from the field to the market particularly delicate. In tropical regions, where temperatures range from 28 to 35 °C, a few days can determine the transition from a perfect fruit to an unsalable one. This is why the most advanced supply chains have developed an eight-level grading system that not only measures color or size, but interprets the biological rhythm of the fruit, from flowering to commercial ripening.
Tropical logic is based on a simple principle: you don’t control mangos, you accompany them. Each grading level represents a precise stage in the life of the fruit, defined by measurable parameters such as starch content, ethylene production, and pulp pressure. This makes it possible to determine not only when to harvest, but also how to package, refrigerate, and transport mangos according to the target market. A fruit harvested at level 4, for example, will be able to withstand a three-week shipment to Europe; at level 6, on the other hand, it will have to be destined for quick consumption or air freight.
In the case of mangos grown for export, grading also becomes a logistical tool. Producers in Peru, Kenya or India manage batches according to the “exportwindow,” which is the time window in which temperatures and ripening rates allow for safe export. Correctly defining the level of ripeness at harvest is the first act of preservation: it means knowing how many days the fruit will be able to travel, what temperature it will need to be kept at, and what stage it will arrive on European shelves. The goal is not only to preserve quality, but to perfectly match the ripening curve with the supply chain.
The decisive parameters: respiration, color and texture
Mangos is a climacteric fruit like bananas or avocados, that is, it is capable of continuing its ripening even after harvest due to the natural production of ethylene. This invisible but crucial gas accelerates the conversion of starches to sugars and the breakdown of chlorophyll in the peel, generating the typical yellow-orange hues. Controlling mangos ripening therefore means managing its respiration, regulating its temperature, humidity and ethylene concentration. At conditioning stations, “ripeningcontrol” chambers are calibrated to simulate or slow down these processes, synchronizing the ripening level with delivery schedules.
In addition to ethylene, the determining factors for classification are pulp texture and sugar content. Texture is measured with a penetrometer, which assesses the pulp’s resistance to pressure: a level 3 (technical harvest) mangos will show values around 5-7 kg/cm², while a level 6 (ready-to-eat) will fall below 2 kg/cm². The sugar content, expressed in °Brix, gradually increases from 9 to 16 as ripening progresses. Even color, although visually dominant, is not sufficient by itself to determine stage: a mangos may appear orange but not yet be sweet, or vice versa.
The tropical classification thus considers a set of combined indices. Visual analysis, tactile inspection and instrumental measurement must converge to identify the true state of the fruit. This integrated approach differs markedly from temperate fruit grading logics, where weight and size are the main commercial indicators. In mangos and other tropical fruits, however, time and temperature become commodity parameters in their own right, as they define product durability along the cold chain.
The 8 levels of mangos classification in the international supply chain
The diagram below summarizes the eight most commonly used classification levels in tropical export supply chains. Each level corresponds to a specific physiological moment in the fruit and defines harvest conditions, storage temperature and logistic destination. The system is flexibly adopted by consortia and operators to synchronize production, storage and transportation.
| Level | Physiological stage | °Average °Brix | Recommended temperature (°C) | Typical Destination |
|---|---|---|---|---|
| 1. Allegagion | Fruit formation, green skin, hard flesh | < 8 | Environment | Agronomic monitoring |
| 2. Pre-ripening | Initial sugar accumulation, initial spoiling | 9-10 | 18-22 | Pre-harvesting and sampling |
| 3. Technical collection | Firm flesh, color partially turned | 11-12 | 13-14 | Export by ship (long transit) |
| 4. Controlled maturation | Ethylene activation start, stable color | 12-13 | 12-13 | Maritime transit and port arrival |
| 5. Logistical ripening | Ethylene control, starches in transformation | 13-14 | 16-18 | Customs hubs and induced maturation |
| 6. Commercial maturation | Full color, developed aroma | 15-16 | 20-22 | Retail and horeca distribution |
This operational scheme makes it possible to synchronize the different stages of the supply chain: from cutting in the field to retailing. The levels represent not only a quality index, but an integrated planning model between collection, refrigeration and transportation. In this way, producers can ensure that mangos arrive on the European shelf at their peak organoleptic characteristics, without anticipating or delaying the commercial ripening window.
Packing and shipping: level 3 to level 6
In tropical export systems, the most delicate window is between level 3 (technical harvest) and level 6 (commercial ripening). In this interval, mangos go from a stable physiological state, suitable for travel, to a fully mature condition, ready for sale. Properly managing this transition means coordinating logistics, packaging, and temperature control synergistically. It is at this stage that mangos demonstrate their sensitivity as a climacteric product: a small change in heat or ventilation can advance or delay the optimal time of consumption by days.
Export packaging must provide ventilation, mechanical protection and thermal stability. Microperforated cardboard or recyclable plastic boxes with molded alveoli reduce pressure points and allow cold air to pass through. Ventilation holes are sized according to the duration of the shipment: for long trips to Europe, an opening degree between 4 and 6 percent of the surface area is preferred, while for short or air shipments, ventilation can be reduced to preserve internal humidity. Mangos packaging shares many solutions with that of avocados, especially in the management of respiratory gases and the microclimate inside the package, as discussed in more detail in the section on packaging techniques for tropical fruit.
During shipping, temperature is the most critical control factor. Refrigerated mangos containers are set at 12-13 °C, with relative humidity around 85-90%. Lower values can cause cold damage, while excess heat accelerates ethylene release and thus ripening. In transit, fruits are often treated with controlled atmospheres (2-4% O₂ and 5-8% CO₂) to reduce respiration and stabilize sugar content. The cold chain, in this context, is not only a sanitary requirement but a true dynamic grading tool: it allows the fruit to be maintained at the desired physiological level until customs clearance.
Operational comparison of mangos and avocados
Mangos and avocados share the same climacteric logic, but react differently to controlled ripening processes. Avocados, in fact, is more sensitive to temperature fluctuations, while mangos tolerate long transits better as long as the container remains stable and well ventilated. Both require a classification system based on the physiology of the fruit, rather than on external characteristics alone. However, while for avocados ideal ripeness coincides with creamy flesh and uniform color, in mangos the definition of levels is more articulated because it must respond to different market destinations and varieties.
Companies that manage both supply chains use predictive models to coordinate ripening and shipping stages. Each variety of mangos (Kent, Keitt, Tommy Atkins, Haden) has a specific respiratory curve, with differences in the timing of sugar accumulation and response to ethylene. This means that levels 3 and 4 of one variety could be equivalent to level 5 of another, requiring precise control of temperature and transit times. The convergence with avocados is evident at the packaging and shipping stage: the same controlled atmosphere techniques and cold chain protocols are applied in parallel, reducing costs and improving logistical consistency across different tropical species.
| Parameter | Mangos | Avocados | Operational Notes |
|---|---|---|---|
| Transport temperature | 12-13 °C | 5-6 °C | Avocados requires more intense refrigeration; mangos fear excessive cold. |
| Controlled atmosphere | Low O₂, moderate CO₂. | Very low O₂ | Both use oxygen reduction to slow maturation. |
| Average travel time | 18-21 days | 14-18 days | Mangos have longer logistics windows due to their thick and compact skin. |
| Ideal maturation stage at embarkation | Level 3-4 | Level 2-3 | For mangos, harvesting can be more advanced, given the greater resistance to pressure. |
This operational parallelism has led to increasing convergence in the logistical structures of tropical exporting countries. Packaging warehouses, originally dedicated to a single species, now run integrated lines for mangos, avocados and papayas, optimizing refrigeration costs and transport flows. Multilevel classification makes it possible to maintain consistency among different products while respecting the physiological specificities of each.
Toward an integrated tropical system
The Futura of mangos grading-and tropical fruits more generally-points toward an integrated model, where ripening, logistics, and traceability dialogue in real time. Next-generation digital platforms allow each batch to be associated with a physiological profile that includes ripening level, harvest date, transit temperature and intended destination. In this way, distributors can plan distribution with precision, choosing the most suitable batches for immediate consumption and keeping those still in the controlled ripening stage in storage.
This transformation is already visible in major European hubs, where mangos and avocados containers are being monitored with IoT sensors that record temperature, humidity and gas concentration. The data collected allows for real-time updating of the batch position within the classification levels, making the selection process more flexible and sustainable. The goal is no longer just to classify, but to predict: to know in advance when a batch will be ready for distribution, reducing waste and improving the efficiency of the entire supply chain.
The eight-level classification of mangos thus becomes a common language among tropical producers and European buyers. It allows production and logistic steps to be synchronized, ensuring a balance between organoleptic quality and commercial durability. It is a form of supply chain intelligence that combines technology, agronomy and sustainability. Grading means understanding the life of the fruit and knowing how to accompany it, from the field to the table, with precision, awareness and overall consistency. Discover our mangos selection lines.