Packaging Delicate Fruits: A Key Factor in Profitability
Strawberries, cherries and blueberries are among the most popular fruits worldwide, but they are also some of the most delicate products to handle during weighing, filling and packaging operations. An inadequate packaging system can lead to product damage, weight loss, reduced shelf life and costly complaints from retailers, distributors and supermarket chains.
For this reason, an increasing number of growers, cooperatives and packing houses are investing in automated packaging lines designed to ensure accuracy, high production speeds, food safety and maximum product protection.
In this guide, we explore the most effective methods for packing strawberries, cherries and blueberries into plastic punnets and cups, the technologies commonly used in modern fruit packaging operations, and the automation solutions that help producers increase productivity, reduce labor costs and improve overall packaging quality.
Why Is Proper Packaging So Important for Strawberries, Cherries and Blueberries?
Strawberries, cherries and blueberries have specific characteristics that require special attention during handling, weighing and packaging operations:
- High mechanical fragility.
- Sensitivity to impacts and drops.
- Limited shelf life.
- Need for an attractive product presentation.
- Traceability and weight control requirements.
- Strict food hygiene standards.
A well-designed packaging system helps to:
✓ Reduce product waste and losses.
✓ Improve retail presentation.
✓ Increase production speed and efficiency.
✓ Meet supermarket and export requirements.
✓ Maintain product quality until it reaches the final consumer.
The Most Common Packaging Formats for Strawberries, Cherries and Blueberries
The most in-demand packaging formats today include:
PET or RPET Plastic Punnets
Available in:
- 125 g
- 250 g
- 500 g
- 750 g
- 1 kg
Advantages:
- Excellent product visibility.
- Protection against crushing and damage.
- Easy stacking and handling.
Transparent Plastic Cups
Widely used for:
- Retail sales.
- Ready-to-eat fruit products.
- Premium packaging formats.
Sustainable Packaging Solutions
More and more producers are choosing:
- Recycled RPET materials.
- Recyclable cardboard packaging.
- Compostable bioplastics.
Click to Watch the Video
Automatic Strawberry Weighing and Punnet Packaging Line
Stages of an Automatic Strawberry, Cherry and Blueberry Packaging Line
1. Product Receiving and Feeding
The fruit arrives from the sorting or grading area before entering the packaging line.
The feeding conveyors must be specially designed to:
- Minimize impacts and product damage.
- Maintain a constant and controlled product flow.
- Prevent accumulation and bottlenecks.
2. Weighing with Multihead Weighers
Multihead weighers are currently one of the most efficient solutions for handling and weighing delicate fruits.
Advantages
- High weighing accuracy.
- High production speeds.
- Reduced product handling.
- Lower product giveaway caused by overweight.
Depending on the project requirements, production speeds can reach:
- 40 packs/minute.
- 80 packs/minute.
- More than 120 packs/minute.
Applications
- Strawberries.
- Cherries.
- Blueberries.
- Raspberries.
- Grapes.
- Cherry tomatoes.
- Fruit mixes
Looking for an Automated Fruit Packaging Solution?
3. Automatic Filling of Punnets and Cups
Once the exact target weight has been achieved, the product is gently discharged into the packaging.
Modern filling systems incorporate:
- Gentle discharge hoppers.
- Anti-impact systems.
- Controlled product drop systems.
- Specific adjustments according to the type of fruit.
This ensures that the product maintains its visual quality, appearance and freshness throughout the packaging process.
4. Dynamic Checkweighing
Retail chains and distributors are increasingly demanding higher levels of accuracy and quality control.
Dynamic checkweighers automatically verify that each package meets the specified target weight during the production process.
Benefits
:
- Compliance with regulations and customer requirements.
- Elimination of weight-related complaints.
- Reduction of product giveaway caused by overfilling.
5. Metal Detection
Food safety is an essential requirement for modern packaging operations.
Metal detectors allow manufacturers to identify potential metal contaminants before the product reaches the final consumer.
They can detect:
- Ferrous metals.
- Non-ferrous metals.
- Stainless steel.
Advantages:
- Brand protection.
- Compliance with international food safety standards.
- Support for quality certifications.
Fresh Fruit Salad Packaging Line with Juice Filling System
Can Strawberries, Cherries and Blueberries Be Packed in Doypack Bags?
Yes.
Although punnets remain the most widely used packaging format, some markets are increasingly adopting Doypack pouches for specific applications.
Doypack packaging machines allow manufacturers to achieve:
- Premium packaging formats.
- Greater product differentiation on the retail shelf.
- Integration of zipper closures.
- Innovative product presentation.
They are particularly suitable for:
- Premium cherries.
- Dried fruit.
- Fruit snacks.
Vertical Packaging Machines for Fruits and Related Products
Vertical packaging machines are widely used for:
- Cherries.
- Blueberries.
- Nuts and dried fruits.
- Snacks.
- Frozen products.
Advantages:
- High production speed.
- Lower cost per pack.
- High flexibility in packaging formats.
They can be combined with multihead weighers to create fully automated packaging lines.
Benefits of Automating a Fruit Packaging Line
Companies that automate their packaging processes usually achieve:
Increased Production Capacity
Higher output compared to manual packaging systems.
Reduced Labour Costs
Less dependency on temporary or seasonal workers.
Improved Product Quality
Less product handling and fewer damages during the packaging process.
Greater Weight Accuracy
Reduction of product giveaway caused by overfilling.
Enhanced Commercial Presentation
Consistent, professional and attractive packaging quality.
How to Choose the Best Packaging Line for Strawberries, Cherries and Blueberries
Before investing in an automated packaging line, it is essential to analyze:
- Required production capacity per hour.
- Packaging formats and sizes.
- Type of fruit to be handled.
- Desired level of automation.
- Available production space.
- Export and retailer requirements.
Each project requires a customized solution to maximize efficiency and return on investment.
Multihead Weigher for Weighing and Dosing Blueberries and Delicate Fruits
Packaging Solutions for Growers, Cooperatives and Fruit Packing Facilities
At Exaltapack, we design and integrate complete packaging lines tailored to each customer’s specific needs.
Our solutions include:
- Multihead weighers.
- Vertical packaging machines.
- Doypack packaging machines.
- Metal detectors.
- Dynamic checkweighers.
- Product feeding and conveying systems.
- Complete automation and line integration.
We work with growers, cooperatives and export companies looking to improve productivity, product quality and the profitability of their packaging operations.
Contact us for a free, no-obligation consultation
Would you like to automate the packaging of strawberries, cherries or other delicate fruits?
Our technical team can help you find the most suitable packaging solution for your production needs.
Phone: +34 936 360 673
Email: info@exaktapack.com
Looking for an Automated Packaging Solution for Strawberries, Cherries and Blueberries?
Frequently Asked Questions (FAQ)
What is the best system for packaging strawberries?
Multihead weighers combined with gentle filling systems currently offer the best balance between speed, accuracy and product protection.
What packaging format is most commonly used for cherries?
PET and RPET punnets of 500 g and 1 kg remain among the most widely used formats.
Is a metal detector mandatory?
Although requirements depend on the market and applicable regulations, more and more retailers and supermarket chains are requesting this type of quality control.
What production speed can an automatic packaging line achieve?
Depending on the configuration, an automatic line can exceed 100 packs per minute.
Can weight control and metal detection be integrated?
Yes. This is currently one of the most common configurations in modern packaging lines.
Conclusion: The Future of Fresh Fruit Packaging
The growing demand for high-quality fresh fruit requires increasingly efficient and accurate packaging systems.
The combination of multihead weighers, automatic filling systems, checkweighers and metal detectors allows fruit producers and packing facilities to optimize their processes, reduce costs and deliver a perfectly presented product to the final consumer.
Investing in a modern packaging line not only improves productivity, but also helps increase the company’s competitiveness and profitability.
