How to check fruit quality? Use this Fruit firmness tester to determine the firmness of the fruit pulp
The Bareiss Fruit Hardness Tester – HPE III Fff is used to determine the hardness of fruits, vegetables, meat, and fish. It consists of interchangeable test anvils according to different fruits and vegetables that are to be measured in a non-destructive way unlike the fruit penetrometer. Our digital durometer plays a very important role in determining the quality of the fruit so the sellers can ensure the perfect ripeness when it becomes available to the consumers. The special spring-loaded outer sleeve helps in maintaining the correct pressure to attain repeatable, accurate results.
Non-Destructive Firmness Testing for Produce and Food Quality Control
The Bareiss HPE III Fff is a digital firmness tester designed for non-destructive hardness and firmness testing of fruits, vegetables and selected food products such as meat and fish. Unlike conventional fruit penetrometers that penetrate the surface of the sample, the HPE III Fff measures surface yielding without damaging the product, allowing tested produce to remain usable after measurement.
Firmness is an important indicator of fruit ripeness, freshness and overall quality. By providing a repeatable way to evaluate firmness without cutting or puncturing the sample, the HPE III Fff can help growers, packers, food processors, distributors and quality-control personnel monitor products during harvesting, storage, transportation and other stages of the supply chain.
Repeatable Measurements Without Penetrating the Fruit
The HPE III Fff uses an integrated spring-loaded compression sleeve to help the operator position the instrument correctly and apply consistent pressure. The instrument measures the yielding of the sample surface at a defined contact force and measuring distance. The resulting Fff value is displayed directly on the instrument.
Measurement begins automatically after the tester is correctly positioned against the sample. An acoustic signal indicates completion of the measurement, while an error signal alerts the operator if the measurement procedure is interrupted. This controlled procedure helps improve repeatability between individual tests and operators.
Interchangeable Test Anvils for Different Foods
Different fruits and foods vary considerably in size, shape and firmness. The HPE III Fff therefore uses interchangeable test anvils selected according to the product being evaluated. One test anvil of the customer’s choice is included with the instrument; additional anvils are available separately.
| Test Anvil | Typical Applications |
|---|---|
| Cylinder 0.10 cm² | Plums, damsons, apricots, peaches |
| Cylinder 0.25 cm² | Tomatoes, grapes, eggplant, cherries, melons, blueberries |
| Cylinder 0.5 cm² | Strawberries, watermelon, broccoli, meat, tofu |
| Sphere Ø 2.5 mm | Cucumber, radish, carrot, kohlrabi, zucchini, firm onion |
| Sphere Ø 5.0 mm | Avocados, apples, pears, cucumbers, oranges, peppers, papayas, melons, mangoes, citrus fruits, soft onion |
| Spherical segment r = 6.3 mm | Cooked potatoes, bananas, smoked fish |
Designed for Practical Food Quality Testing
The HPE III Fff combines a lightweight aluminum-alloy construction with a patented handgrip intended to help the operator maintain the appropriate measuring angle and pressure. Its 102 × 64-pixel graphic display provides the measurement result together with general instrument information, navigation functions and battery-charge status.
The instrument can store up to 300 measured values. Recorded measurements can be transferred to a computer through its RS232 interface using the RS232/USB converter cable. BareissOne software for data logging and analysis is also available upon request.
Key Features and Benefits
- Non-destructive firmness testing without penetrating the fruit or vegetable surface
- Suitable for fruits, vegetables, meat, fish and other supported food products
- Interchangeable test anvils for different types of samples
- Spring-loaded outer sleeve helps maintain consistent measuring pressure
- Patented handgrip supports correct positioning during measurement
- Large 102 × 64-pixel graphic display
- Stores up to 300 measured values
- RS232 data output with RS232/USB converter for PC connection
- Acoustic indication when the measurement is complete
- Error indication if the measurement procedure is interrupted
- Lightweight, robust aluminum-alloy construction
Specifications
| Model | HPE III Fff |
|---|---|
| Display Accuracy | ±0.5 Fff |
| Resolution | 0.1 Fff |
| Data Storage | Up to 300 measured values |
| Graphic Display | 102 × 64 pixels |
| Ingress Protection | IP50 |
| Data Output | RS232 |
| Charging / Communication | RS232/USB converter |
| Power Supply Output | 5 VDC, 1000 mA |
| Power Supply Input | 100–240 VAC, 50/60 Hz, 150 mA |
| Instrument Dimensions (H × W × D) | 160 × 70 × 40 mm |
| Instrument Weight | 0.37 kg |
| Case Dimensions | 240 × 210 × 55 mm |
| Case Weight | 0.5 kg |
What’s Included
The HPE III Fff kit includes the digital food firmness tester, one test anvil of the customer’s choice, USB output cable, power adapter and a foam-fitted hard carrying case. Additional test anvils are sold separately.
Calibration and Data Analysis
A factory works-calibration certificate is available upon request. BareissOne software is also available upon request for users who want to transfer, document and analyze measurement data on a computer.
Frequently Asked Questions
What is the difference between the HPE III Fff and a traditional fruit penetrometer?
A conventional penetrometer determines firmness by penetrating the fruit and therefore damages the tested sample. The HPE III Fff evaluates surface yielding using a defined contact force and measuring distance without penetrating the peel, making the measurement non-destructive.
Why are different test anvils used for different fruits?
Fruit and food products differ substantially in size, surface characteristics and firmness. Bareiss provides several anvil geometries and contact areas so the measuring interface can be matched to the type of product being evaluated.
Can the same instrument test both soft and firm produce?
Yes. The HPE III Fff can be configured with different interchangeable anvils for products ranging from soft fruits such as strawberries and bananas to firmer products such as apples, carrots and avocados. The appropriate anvil should be selected for the particular application.
Can measurements be taken without peeling the fruit?
Yes. The HPE III Fff is specifically designed to perform non-destructive measurements without penetrating the fruit peel. Bareiss notes that measurements are most reliable when taken on an even surface.
Can the HPE III Fff be used for products other than fruit?
Yes. Bareiss specifies applications for vegetables as well as selected foods including meat, tofu, smoked fish and cooked potatoes. The appropriate test anvil depends on the material being evaluated.
Does the HPE III Fff report measurements in newtons or another force unit?
No. Bareiss specifies that the measured Fff value is not a force unit. The instrument evaluates yielding at a given contact force and defined measuring distance and reports the resulting value on its Fff scale.
Can HPE III Fff measurements be transferred to a computer?
Yes. The tester stores up to 300 measured values and provides an RS232 data interface. An RS232/USB converter allows measurements to be transferred to a PC. BareissOne data logging and analysis software is available separately upon request.
How can operators improve measurement repeatability?
The sample should have an even surface where possible, and the tester should be positioned so the compression sleeve’s contact surface rests correctly against the sample. The spring-loaded sleeve and patented handgrip are designed to assist with consistent pressure and positioning. The instrument also provides an error indication if the measurement procedure is interrupted.
Is a calibration certificate supplied with the HPE III Fff?
A works-calibration certificate is available from Bareiss upon request.
How to check fruit quality? Use this Fruit firmness tester to determine the firmness of the fruit pulp
The Bareiss Fruit Hardness Tester – HPE III Fff is used to determine the hardness of fruits, vegetables, meat, and fish. It consists of interchangeable test anvils according to different fruits and vegetables that are to be measured in a non-destructive way unlike the fruit penetrometer. Our digital durometer plays a very important role in determining the quality of the fruit so the sellers can ensure the perfect ripeness when it becomes available to the consumers. The special spring-loaded outer sleeve helps in maintaining the correct pressure to attain repeatable, accurate results.
Non-Destructive Firmness Testing for Produce and Food Quality Control
The Bareiss HPE III Fff is a digital firmness tester designed for non-destructive hardness and firmness testing of fruits, vegetables and selected food products such as meat and fish. Unlike conventional fruit penetrometers that penetrate the surface of the sample, the HPE III Fff measures surface yielding without damaging the product, allowing tested produce to remain usable after measurement.
Firmness is an important indicator of fruit ripeness, freshness and overall quality. By providing a repeatable way to evaluate firmness without cutting or puncturing the sample, the HPE III Fff can help growers, packers, food processors, distributors and quality-control personnel monitor products during harvesting, storage, transportation and other stages of the supply chain.
Repeatable Measurements Without Penetrating the Fruit
The HPE III Fff uses an integrated spring-loaded compression sleeve to help the operator position the instrument correctly and apply consistent pressure. The instrument measures the yielding of the sample surface at a defined contact force and measuring distance. The resulting Fff value is displayed directly on the instrument.
Measurement begins automatically after the tester is correctly positioned against the sample. An acoustic signal indicates completion of the measurement, while an error signal alerts the operator if the measurement procedure is interrupted. This controlled procedure helps improve repeatability between individual tests and operators.
Interchangeable Test Anvils for Different Foods
Different fruits and foods vary considerably in size, shape and firmness. The HPE III Fff therefore uses interchangeable test anvils selected according to the product being evaluated. One test anvil of the customer’s choice is included with the instrument; additional anvils are available separately.
| Test Anvil | Typical Applications |
|---|---|
| Cylinder 0.10 cm² | Plums, damsons, apricots, peaches |
| Cylinder 0.25 cm² | Tomatoes, grapes, eggplant, cherries, melons, blueberries |
| Cylinder 0.5 cm² | Strawberries, watermelon, broccoli, meat, tofu |
| Sphere Ø 2.5 mm | Cucumber, radish, carrot, kohlrabi, zucchini, firm onion |
| Sphere Ø 5.0 mm | Avocados, apples, pears, cucumbers, oranges, peppers, papayas, melons, mangoes, citrus fruits, soft onion |
| Spherical segment r = 6.3 mm | Cooked potatoes, bananas, smoked fish |
Designed for Practical Food Quality Testing
The HPE III Fff combines a lightweight aluminum-alloy construction with a patented handgrip intended to help the operator maintain the appropriate measuring angle and pressure. Its 102 × 64-pixel graphic display provides the measurement result together with general instrument information, navigation functions and battery-charge status.
The instrument can store up to 300 measured values. Recorded measurements can be transferred to a computer through its RS232 interface using the RS232/USB converter cable. BareissOne software for data logging and analysis is also available upon request.
Key Features and Benefits
- Non-destructive firmness testing without penetrating the fruit or vegetable surface
- Suitable for fruits, vegetables, meat, fish and other supported food products
- Interchangeable test anvils for different types of samples
- Spring-loaded outer sleeve helps maintain consistent measuring pressure
- Patented handgrip supports correct positioning during measurement
- Large 102 × 64-pixel graphic display
- Stores up to 300 measured values
- RS232 data output with RS232/USB converter for PC connection
- Acoustic indication when the measurement is complete
- Error indication if the measurement procedure is interrupted
- Lightweight, robust aluminum-alloy construction
Specifications
| Model | HPE III Fff |
|---|---|
| Display Accuracy | ±0.5 Fff |
| Resolution | 0.1 Fff |
| Data Storage | Up to 300 measured values |
| Graphic Display | 102 × 64 pixels |
| Ingress Protection | IP50 |
| Data Output | RS232 |
| Charging / Communication | RS232/USB converter |
| Power Supply Output | 5 VDC, 1000 mA |
| Power Supply Input | 100–240 VAC, 50/60 Hz, 150 mA |
| Instrument Dimensions (H × W × D) | 160 × 70 × 40 mm |
| Instrument Weight | 0.37 kg |
| Case Dimensions | 240 × 210 × 55 mm |
| Case Weight | 0.5 kg |
What’s Included
The HPE III Fff kit includes the digital food firmness tester, one test anvil of the customer’s choice, USB output cable, power adapter and a foam-fitted hard carrying case. Additional test anvils are sold separately.
Calibration and Data Analysis
A factory works-calibration certificate is available upon request. BareissOne software is also available upon request for users who want to transfer, document and analyze measurement data on a computer.
Frequently Asked Questions
What is the difference between the HPE III Fff and a traditional fruit penetrometer?
A conventional penetrometer determines firmness by penetrating the fruit and therefore damages the tested sample. The HPE III Fff evaluates surface yielding using a defined contact force and measuring distance without penetrating the peel, making the measurement non-destructive.
Why are different test anvils used for different fruits?
Fruit and food products differ substantially in size, surface characteristics and firmness. Bareiss provides several anvil geometries and contact areas so the measuring interface can be matched to the type of product being evaluated.
Can the same instrument test both soft and firm produce?
Yes. The HPE III Fff can be configured with different interchangeable anvils for products ranging from soft fruits such as strawberries and bananas to firmer products such as apples, carrots and avocados. The appropriate anvil should be selected for the particular application.
Can measurements be taken without peeling the fruit?
Yes. The HPE III Fff is specifically designed to perform non-destructive measurements without penetrating the fruit peel. Bareiss notes that measurements are most reliable when taken on an even surface.
Can the HPE III Fff be used for products other than fruit?
Yes. Bareiss specifies applications for vegetables as well as selected foods including meat, tofu, smoked fish and cooked potatoes. The appropriate test anvil depends on the material being evaluated.
Does the HPE III Fff report measurements in newtons or another force unit?
No. Bareiss specifies that the measured Fff value is not a force unit. The instrument evaluates yielding at a given contact force and defined measuring distance and reports the resulting value on its Fff scale.
Can HPE III Fff measurements be transferred to a computer?
Yes. The tester stores up to 300 measured values and provides an RS232 data interface. An RS232/USB converter allows measurements to be transferred to a PC. BareissOne data logging and analysis software is available separately upon request.
How can operators improve measurement repeatability?
The sample should have an even surface where possible, and the tester should be positioned so the compression sleeve’s contact surface rests correctly against the sample. The spring-loaded sleeve and patented handgrip are designed to assist with consistent pressure and positioning. The instrument also provides an error indication if the measurement procedure is interrupted.
Is a calibration certificate supplied with the HPE III Fff?
A works-calibration certificate is available from Bareiss upon request.
