Automatic fruit sorting is still often associated with large farms, producer groups and packing facilities processing thousands of tonnes of fruit. In practice, however, the investment may also be justified on a smaller farm, especially when manual sorting begins to limit sales, production growth or the ability to maintain consistent quality.

There is no single number of hectares or tonnes above which purchasing a sorting machine always becomes profitable. Two farms with a similar cultivated area may have completely different labour costs, season lengths, customer requirements and product preparation methods.

The threshold for automation should therefore be calculated on the basis of the actual process: the number of labour hours, the cost of mistakes, the required daily throughput and the benefits the farm may achieve through faster and more accurate sorting.

Important: the calculations in this article are examples intended to show how the analysis can be performed. They are not typical market results and do not guarantee a specific payback period. An investment decision should be based on the farm’s own data, the supplier’s quotation, financing costs and cautious sales assumptions.

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Automation does not begin with the number of hectares

The cultivated area alone says little about how labour-intensive sorting will be. One farm may sell its entire harvest in bulk to a single buyer and perform only a basic division. Another may prepare several size grades, different types of packaging and separate batches for supermarkets, export and local customers.

Even with a similar production volume, the second farm will require considerably more labour, more accurate inspection and a greater ability to prepare orders quickly.

Instead of asking only, “How many tonnes do we produce?”, it is worth checking:

• how many hours it takes to sort the entire batch manually,
• how many employees are required during the peak season,
• how many product grades must be prepared,
• how quickly the fruit must be sorted and packed,
• how much false rejection and re-sorting cost,
• whether sales can increase without increasing employment,
• whether the current organization allows orders to be completed on time.

Automation becomes necessary when the current working method begins to restrict the farm, not only after a specific cultivated area has been reached.

First signal: it is becoming harder to find workers

One of the most common reasons for introducing automation is the limited availability of seasonal workers. Manual sorting often requires a larger team for a relatively short period.

Problems arise when employees are unavailable at harvest time, new workers must constantly be trained and the quality and speed of work vary depending on the composition of the team.

The cost of manual sorting includes more than wages. Recruitment, onboarding, overtime, accommodation, transport organization, downtime and the time spent by the farm owner or production manager supervising the team should also be considered.

If completing orders depends on whether the farm can find enough people, automation is no longer only a method of reducing costs. It also becomes a way to protect production continuity.

More factors that should be compared are discussed in the article on the real cost of manual blueberry sorting compared with automated sorting systems.

Second signal: sorting has become a bottleneck

A bottleneck occurs when the farm can harvest, cool or deliver more fruit than it is able to sort and prepare for sale.

Typical symptoms include queues of unsorted fruit, working late into the evening, delayed orders and simplifying quality grades only to clear the storage area more quickly.

For fruit that must be cooled and prepared for sale quickly, delays may also reduce product quality. In this situation, the main issue is not the total annual volume, but the amount of fruit that must be sorted in one day or one hour.

A farm processing a moderate volume during a very short season may require greater hourly capacity than a producer sorting more fruit over several months.

Before selecting a machine, seasonal volume and maximum daily volume should be calculated separately. The article on how to choose blueberry sorter capacity for daily fruit volume explains this process. The same principle also applies to other types of fruit.

Third signal: customers require consistent grades

Sales to larger customers often require consistent batches divided according to size, weight, colour, quality or intended use.

Manual sorting may work well for a simple division. As the number of grades increases, however, workers must make more decisions, and differences between individual employees become more visible.

An automatic sorting machine allows the same criteria to be applied throughout the shift. It does not remove people completely from the process, but it reduces the dependence of the result on fatigue and the individual judgement of different workers.

Consistency may be particularly important when a farm wants to move from selling unsorted fruit to preparing its own commercial grades and packaging.

Fourth signal: good fruit is being placed in a lower grade

The profitability of a sorting machine does not result only from reducing labour hours. Part of the benefit may come from making better use of the value of the harvested fruit.

If good fruit is incorrectly directed to processing or a lower commercial grade, the farm loses the difference between the potential and actual selling price. Even a small percentage of incorrectly classified product may become significant when multiplied by the number of kilograms processed during the season.

The calculation should therefore include:

• the value of good fruit placed in a lower grade,
• the cost of defective fruit remaining in a commercial grade,
• claims caused by inconsistent quality,
• the cost of re-sorting a rejected batch,
• loss of customer confidence and difficulty securing further orders.

The financial effect of these mistakes is discussed in more detail in the article on how much false rejects cost during apple sorting.

Fifth signal: the current organization is limiting farm growth

Manual sorting may work adequately for the current production level while still preventing the farm from accepting additional orders, expanding the cultivated area or providing sorting services.

If every increase in volume requires additional workers, the farm is expanding sales in a way that is difficult to control. Costs and organizational risks grow together with production.

In this situation, automation may separate sales growth from a proportional increase in employment. This does not mean that the machine will replace the entire team. Operators and employees supplying packaging, collecting the product and monitoring the line will still be required.

How can you calculate the real cost of manual sorting?

The starting point should be a calculation of the full cost of the current process. The amount shown on the payroll does not provide a complete picture.

Area	What should be included?
Labour	Number of employees, working hours, total hourly employment cost, overtime and replacements.
Organization	Recruitment, training, supervision, transport, accommodation and management time.
Downtime	Time spent waiting for workers, packaging, product collection or the correction of mistakes.
Quality mistakes	False rejects, undetected defects, claims and re-sorting.
Limited sales	Unfulfilled orders, selling fruit without sorting and quality loss while the product is waiting.

The basic labour cost can be calculated using the following formula:

Number of employees × working hours × number of sorting days × total hourly employment cost

Costs that are not directly visible on the payroll should then be added. In practice, these may include overtime, re-sorting, downtime and the time spent by people managing production.

For apple production, the calculation described in the article on how much it costs to sort one tonne of apples may be a useful reference point.

What should be included in the total cost of automation?

The investment calculation should not include only the price of the sorting machine. Depending on the farm layout, feeding equipment, collection conveyors, tables, unloading systems and modifications to the building may also be required.

The total investment cost may include:

• the sorting machine and selected equipment,
• a fruit feeding or unloading system,
• collection conveyors and tables,
• transport, installation and commissioning,
• modifications to the electrical installation,
• compressed air or other utilities required by the line,
• changes to the facility layout,
• operator training,
• investment financing.

Annual operating costs should be estimated separately. These include energy, inspections, wear parts, service and the labour required to operate the line.

The factors affecting equipment prices are explained in the articles on how much an apple sorting machine costs and how much a blueberry sorting machine costs.

How can you calculate the payback period?

A simplified payback period can be calculated by dividing the total investment value by the annual net benefit generated by automation.

Payback period = total investment cost ÷ annual net benefit

The annual benefit may consist of several elements:

• reduced labour costs,
• less overtime and downtime,
• the value of fruit recovered from lower grades,
• fewer claims and re-sorting operations,
• additional margin from increased sales,
• income from sorting services.

The additional costs of using the machine must be deducted from this amount, including energy, service, wear parts, operators and financing costs.

A decision should not be based on only one calculation. It is worth preparing at least a cautious, standard and favourable scenario. If the investment is profitable only when the highest possible sales and maximum savings are assumed, the risk may be too high.

Example payback calculation

Assume that a farm has calculated the following annual costs of its current process:

• EUR 22,500 in labour costs related to sorting,
• EUR 6,250 in losses caused by incorrect fruit classification,
• EUR 3,750 in overtime, downtime and re-sorting costs.

The estimated total cost of the current process is therefore EUR 32,500 per year.

After introducing automation, the farm assumes:

• a reduction in labour costs of EUR 13,750,
• a reduction in quality losses of EUR 3,750,
• EUR 7,500 in additional margin from increased sales,
• EUR 3,750 in annual operating, energy and service costs.

The annual net benefit in this model is:

13,750 + 3,750 + 7,500 − 3,750 = EUR 21,250

If the total investment cost were EUR 85,000, the simplified payback period would be:

85,000 ÷ 21,250 = 4 years

This is only an example of the calculation method. The figures do not represent a typical farm or a typical line price. The actual payback period may be shorter or longer depending on the machine configuration, season, labour costs and sales achieved.

The biggest mistake: attributing all additional sales to the machine

Investment calculations can easily assume that purchasing a sorting machine will automatically allow the farm to sell more fruit at a higher price. The machine itself, however, does not guarantee new customers or a higher margin.

Additional income should only be included when there is a realistic opportunity to increase sales, prepare the required grades or complete specific orders that the farm cannot currently handle.

In a cautious scenario, the payback period can first be calculated using only labour savings and reduced losses. Additional sales are then treated as a potential benefit rather than a necessary condition for the investment to be profitable.

Does a small farm need to buy a complete, highly developed line?

Automation does not have to mean building a large packing facility. A smaller farm can begin with a solution matched to its current volume and sales model.

The first stage may include only the sorting machine, a simple feeding system, several basic outlets and manual packing. An unloading system, additional collection tables or a more advanced packing section can be added later.

Before purchasing the machine, it is important to determine whether greater capacity, additional grades, more collection stations or integration with other equipment may be required in the future.

For apple producers, the guide on how to choose an apple sorting machine may be useful. Blueberry growers can also compare the different types of blueberry sorting systems.

Providing sorting services may change the break-even point

For a smaller farm, the investment may become more profitable if the machine is also used to sort fruit belonging to other producers.

Providing a service increases the number of machine operating hours, spreads the investment cost across a larger volume and creates an additional source of income. This may be particularly relevant when neighbouring farms produce the same type of fruit but do not want to purchase their own equipment.

The calculation must also include the additional organization required: receiving and identifying batches, storage space, settlements with customers, responsibility for quality and cleaning the line between orders.

Financing should not replace a profitability calculation

When assessing the investment, the farm may compare purchasing with its own funds, a bank loan, leasing, a grant or developing the line in stages. Each option affects cash flow and the total project cost differently.

A grant may shorten the payback period calculated on the farm’s own funds, but it should not be the only reason for purchasing the machine. The line must match the farm’s actual needs and generate operational benefits even under cautious assumptions.

Before making a decision, current financing conditions, taxes, depreciation rules and available support programmes should be checked with an accountant, financial adviser or the institution responsible for the relevant funding programme.

When is a farm ready for automation?

The investment should be analysed in detail when several of the following situations occur at the same time:

• sorting requires a large number of seasonal workers,
• it is becoming increasingly difficult to recruit a team for harvest time,
• sorting limits daily sales or packing capacity,
• several product grades must be prepared,
• customers expect more consistent quality,
• good fruit is too often directed to a lower grade,
• overtime and correcting mistakes account for a significant share of costs,
• the farm plans to increase production,
• orders are rejected because sorting capacity is insufficient,
• there is an opportunity to provide sorting services to other producers.

A single problem does not always justify purchasing a machine. When several restrictions occur together, however, it is worth preparing a complete calculation and comparing it with a specific line configuration.

What information should be prepared before speaking to a supplier?

Selecting the right equipment is easier when the farm knows not only its total production but also how the work is organized.

• the total seasonal volume,
• the maximum daily and hourly volume,
• the number of sorting days,
• the type and varieties of fruit,
• the number of required grades,
• the types of packaging used,
• the current number of employees and process cost,
• the available facility space,
• planned development during future seasons,
• equipment already used on the farm.

On this basis, it is possible to determine whether only a sorting machine is required or whether the project should also include a feeding system, additional conveyors, unloading equipment and a more extensive collection section.

Frequently asked questions

At what fruit volume does a sorting machine become profitable?

There is no single threshold suitable for every farm. The result depends on manual sorting costs, season length, quality requirements, the difference in value between grades and the daily capacity required to complete orders.

Does a small sorting machine always reduce staffing requirements?

A machine usually reduces the number of manually performed operations, but it still requires operators. The final staffing requirement depends on the fruit feeding method, number of outlets, packaging type and organization of the collection area.

Does more accurate sorting always result in a higher selling price?

No. More accurate classification allows the farm to prepare more consistent batches, but the final price depends on the market, customer, variety, season and contract terms. A higher price should not be treated as a guaranteed benefit.

Should a grant be included when calculating the payback period?

A separate scenario including funding can be prepared, but it is also worth calculating the investment without it. This shows whether the equipment is operationally justified regardless of the result of the funding application.

Is it better to buy a larger machine with spare capacity?

A reasonable capacity reserve may be justified, but an excessively developed line increases the investment cost and may remain underused. The equipment should match the highest realistic workload and a credible farm development plan.

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Summary

A small farm becomes ready for automation not after reaching a specific number of hectares, but when manual sorting begins to restrict sales, quality or further development.

The break-even point is influenced by labour costs, worker availability, maximum daily volume, the number of required grades, the value of incorrectly classified fruit and the possibility of increasing sales or providing sorting services.

The best basis for a decision is a calculation prepared using the farm’s actual data and tested under several scenarios. This makes it possible to select a solution that is neither too small nor unnecessarily extensive.

Green Sort supplies both fruit sorting machines and solutions designed specifically for blueberry sorting. The configuration can take into account the current production volume, available space, packing method and the possibility of expanding the line in the future.