About Us

Prüfengel offers authentic consumer tests in which real users share their experiences with products. Our tests are based on practical applications in everyday life and reflect the opinions of consumers. As we focus on consumer tests, we do not carry out any material, long-term or laboratory tests. The tests are carried out by 1-2 independent consumers over a period of 7-14 days. The exact test conditions can be viewed in the test plan of the respective test report – click here to go directly to the test plan.

Manufacturers provide the tested products free of charge. We charge a one-off test fee for carrying out the tests. In addition, manufacturers pay an annual licence fee for the use of the Prüfengel seal. We also receive a commission for linking to manufacturers’ websites. These remunerations have no influence on our test results or ratings.

We guarantee transparency and a fair evaluation. For a detailed insight into our comprehensive evaluation process, please click here.

VonBueren
Cooling battery

The cool pack from VonBueren is a reliable cooling element that is particularly suitable for use in cool boxes and cool bags. The leak-proof cooling elements impress with their welded openings, ensuring a high level of safety. The optimized cooling liquid enables a fast freezing time and an impressive cooling time of up to 12 hours. The product also complies with DIN EN 12546-3 and is food-safe, making it suitable for commercial use. With a size of 7.4 x 16.7 x 2.1 cm, the ice pack is handy and easy to transport.

  • Leak-proof cooling elements
  • Optimum cooling liquid for fast freezing
  • Up to 12 hours cooling time
  • Food safe
  • No sustainable product packaging

The first impression

Packaging and contents

Here we take a closer look at packaging. Sustainability is becoming an increasingly important factor. In addition, adequate protection of the product must of course also be guaranteed. Are the contents of the packaging complete and does the manufacturer make it as easy as possible for me to use the product straight away?

Here we take a closer look at packaging. Sustainability is becoming an increasingly important factor. In addition, adequate protection of the product must of course also be guaranteed. Are the contents of the packaging complete and does the manufacturer make it as easy as possible for me to use the product straight away?

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Product protection

Carton is sturdy, product sufficiently protected

100

Points

Sustainability Packaging

No unnecessary packaging waste, use of non-recyclable materials

80

Points

Package contents & scope

Complete

100

Points

Instructions for use

Product is self-explanatory

100

Points

TOTAL

95

Points

Weighting: 20%
*Themaximum score is 100 points

The cold pack from VonBueren makes a very good first impression as soon as it is unpacked. It is delivered in a classic shipping box that protects the product securely. The compact packaging ensures that the cool pack arrives undamaged. Unfortunately, the use of non-recyclable materials in the packaging is a small minus point in terms of sustainability. However, the contents of the pack are complete and in perfect condition, which underlines the quality of the product. Although there are no instructions for use, the cool pack is easy to use thanks to its intuitive handling.

The first time in your hand

Product processing and appearance

Before we start the practical test, we take a close look at the workmanship of the products. How high quality are the materials used? Are the look and feel satisfactory?

Before we start the practical test, we take a close look at the workmanship of the products. How high quality are the materials used? Are the look and feel satisfactory?

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Visual appearance

Simple design

100

Points

Processing

Very good workmanship

100

Points

Stability

Very stable

100

Points

Sustainability of the product

No details, but use of high-quality materials

80

Points

TOTAL

95

Points

Weighting: 20%
*Themaximum score is 100 points

When you first pick up the VonBueren cool pack , you immediately notice the high-quality workmanship. The product has an appealing visual appearance, which indicates that it has been carefully manufactured. The workmanship of the cool pack is also of high quality and impresses with its lack of unpleasant plastic or chemical odors. The stability of the product can also be rated as very good, which indicates a robust construction. Although there is no specific information on sustainability, the use of high-quality materials suggests that quality is also important in this area. Another plus point is the option to purchase additional product variants from the manufacturer, which offers the customer additional choice.

This is what our practical test showed

Does the manufacturer keep its advertising promises?

Our practical test has the highest relevance and therefore weighting. Here, the product has to undergo a wide range of criteria and tests. We check the functions and product promises of the test article.

Our practical test has the highest relevance and therefore weighting. Here, the product has to undergo a wide range of criteria and tests. We check the functions and product promises of the test article.

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Individual

Effective cooling

100

Points

Individual

Up to 12 hours cooling time

100

Points

Individual

Handy and lightweight at 200 g

100

Points

Individual

Versatile use

100

Points

TOTAL

100

Points

Weighting: 45%
*Themaximum score is 100 points

The manufacturer’s ice packs were subjected to a practical test, during which their advertising promises proved to be true. The cooling performance is effective and ensures long-lasting cooling of food or drinks. With an impressive cooling time of up to 12 hours, the cool packs offer a reliable way to keep food fresh, even on the go. The handy size and low weight of just 200 grams make the cool packs easy to transport. They are also highly flexible, so they can be used in different freezer compartments or cooler bags without any problems. These properties make the cool packs not only practical, but also versatile for different applications.

Price/performance ratio

and ratings from consumers

Finally, we examine how the product compares to the competition. Can it keep up with the competition in terms of price and quality? Would we generally recommend buying it? We also look at the consumer reviews and check whether the critical and positive reviews are actually justified.

Finally, we examine how the product compares to the competition. Can it keep up with the competition in terms of price and quality? Would we generally recommend buying it? We also look at the consumer reviews and check whether the critical and positive reviews are actually justified.

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Price / performance ratio

Very good performance in the lower price segment

100

Points

Rating cut

4.5 out of 5.0 on Amazon

75

Points

TOTAL

88

Points

Weighting: 15%
*Themaximum score is 100 points

On the Amazon platform, consumers rate the product with an average of 4.5 stars. In some cases, there are complaints that the ice packs only keep cold for a short time. On the other hand, it is positively emphasized that the product fulfills its purpose well and is considered a good product. In our practical test, we were able to confirm that the cool packs cool effectively , are handy and keep cold for a long time .

Prices of up to €9.90 are charged on the Internet for equivalent products. Very inexpensive products are available from as little as €7.90 . The VonBueren cool pack is therefore currently in the lower price segment with a price of €7.90. For the quality and performance received, the price-performance ratio is very good.

Overall result

1. packaging & contents

20%

95

Points

2. product processing & appearance

20%

95

Points

3. in the practical test

45%

100

Points

4. price/performance & consumer ratings

15%

88

Points

TOTAL

96 points

*Themaximum score is 100 points

Cooling battery
 of the brand 
VonBueren
achieved
96
Points in our test and therefore passed. The test was carried out in the test period
05/24
and is stored in our database under the licence number
240415003
. Further information on our test procedure can be found at www.pruefengel.de/testverfahren.

The practical tests are based on careful observations and do not include long-term or laboratory tests. The test judgements reflect the personal impressions and opinions of the testers who try out the products in everyday use. We would like to emphasise that these evaluations do not claim to be exhaustive and may reflect both subjective and objective impressions. The evaluations are made to the best of our knowledge and belief, without any liability being assumed for the accuracy or completeness of the test results. It is important to note that our tests are not based on legal requirements, medical effects or specific ingredients of the products. We rely on the advertising claims and information provided by the manufacturers, but use of the information is always at your own risk. Our efforts are aimed at ensuring a serious and thorough testing procedure, which has been developed in a long and professional process in close co-operation with our testers.

The practical tests are based on careful observations and do not include long-term or laboratory tests. The test judgements reflect the personal impressions and opinions of the testers who try out the products in everyday use. We would like to emphasise that these evaluations do not claim to be exhaustive and may reflect both subjective and objective impressions. The evaluations are made to the best of our knowledge and belief, without any liability being assumed for the accuracy or completeness of the test results. It is important to note that our tests are not based on legal requirements, medical effects or specific ingredients of the products. We rely on the advertising claims and information provided by the manufacturers, but use of the information is always at your own risk. Our efforts are aimed at ensuring a serious and thorough testing procedure, which has been developed in a long and professional process in close co-operation with our testers.

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Evaluation process

You can find a detailed insight into our evaluation process, which forms the basis for our product ratings, here:

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