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 material, long-term or laboratory tests. Our aim is to provide honest feedback to help you make a purchasing decision. For a detailed insight into our comprehensive evaluation process, which forms the basis of all our product reviews, please click here.

Rimbaly
4-in-1 knife sharpener

The 4 in 1 knife sharpener from Rimbaly is a versatile kitchen tool that has been specially developed for sharpening knives and scissors. With its four sharpening slots, it offers comprehensive care for different types of blades: Slot one is designed for scissors, while slots two to four (coarse, medium and fine sharpening) help dull blades back to optimum sharpness. Made from high-quality materials such as stainless steel, tungsten steel, diamond and ceramic, the sharpener impresses with its durability and precise results. In the test, the appliance scored highly thanks to its ergonomic design with non-slip handle and stable base – ideal for safe and comfortable handling. The supplied cut protection glove is particularly practical and further increases safety when sharpening. Kitchen knives, scissors and steel blades can be sharpened efficiently in just a few simple steps. Thanks to its compact design and simple operation, the Rimbaly knife sharpener is suitable for amateur chefs and professionals alike.

  • Very good stability
  • Versatile in use
  • Good handling
  • Precise results
  • Intuitive
  • Use of plastic film

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

Unnecessary packaging waste was avoided, the plastic film protects the product components, but a sustainable alternative would be desirable

80

Points

Package contents & scope

Complete

100

Points

Instructions for use

Clearly written in German and English

100

Points

TOTAL

95

Points

Weighting: 20%
*Themaximum score is 100 points

The packaging made a robust and well thought-out impression during the test. The shipping carton was made of recyclable material and was compactly designed to avoid packaging waste. The knife sharpener was securely fastened and a thin plastic film served as additional protection, although a more environmentally friendly alternative would be desirable. The enclosed instructions for use in German and English were convincing with clear and understandable explanations of the functions of the four sharpening slots and a clear design.

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

Attractive, 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

70

Points

TOTAL

93

Points

Weighting: 20%
*Themaximum score is 100 points

The 4 in 1 knife sharpener makes a good impression at first glance. The design is modern and functional with clearly labelled sharpening slots that enable intuitive operation . The workmanship is of high quality: all slots are neatly fitted and the non-slip handle provides a comfortable grip. The stable construction with non-slip underside ensures a secure stand even during intensive use. Although no precise details are given regarding sustainability, the use of durable materials such as stainless steel and ceramic indicates a robust and environmentally conscious design.

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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User friendliness

Intuitive handling and clearly labelled sharpening slots

100

Points

Safety during use

Sharpening slots reliably hold the blades in place, cut protection glove offers additional protection

100

Points

Stability during use

Very stable, non-slip base, ergonomic handle

100

Points

Compatibility with different knife types

Very versatile, not suitable for ceramic knives or serrated blades

90

Points

Effectiveness of sharpening

Very sharp, occasional slight resistance

90

Points

TOTAL

96

Points

Weighting: 45%
*Themaximum score is 100 points

In the practical test, the 4 in 1 knife sharpener impressed with its user-friendliness, safety and efficiency. The clearly labelled sharpening slots enabled intuitive handling, which led to a noticeable improvement in blade sharpness after just a few strokes. Knives and scissors could be sharpened without any great effort , making the sharpener suitable even for inexperienced users. The stability was particularly positive. The non-slip base held the device securely on the work surface even when applying heavy pressure, while the ergonomically shaped handle provided a stable grip and prevented slipping. The knife sharpener proved its versatility when working with kitchen knives, scissors and other steel blades, all of which could be processed efficiently. However, the device is not suitable for ceramic knives or serrated blades, which limits its range of applications somewhat. The sharpener also fulfils high standards in terms of safety. The sharpening slots reliably hold the blades in place, while the supplied cut protection glove offers additional protection and makes it particularly safe to use. The combination of simple operation, sturdy design and impressive performance makes the Rimbaly 4 in 1 knife sharpener a practical and reliable kitchen helper.

Test plan

You can find a detailed insight into the evaluation criteria of the practical part of the test and the distribution of points here. If you are also interested in the evaluation of our other test criteria, please read our document on the evaluation process.

Price/performance ratio

and ratings from consumers

Finally, we analyse 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 analyse 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

90

Points

Rating cut

Not rated, as there are still too few customer reviews

TOTAL

90

Points

Weighting: 15%
*Themaximum score is 100 points

At the time of testing, the product had not been listed on Amazon for long enough. Therefore, the existing reviews do not sufficiently reflect the advantages and disadvantages of the product, so this point is neglected in the evaluation.

Prices of up to €59.99 are charged on the Internet for equivalent products. Very affordable products are available from as little as €9.99 . The 4 in 1 knife sharpener from Rimbaly is therefore currently in the lower price segment with a price of €19.99. 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%

93

Points

3. in the practical test

45%

96

Points

4. price/performance & consumer reviews

15%

90

Points

TOTAL

94

Points

*Themaximum score is 100 points

4-in-1 knife sharpener
of the brand
Rimbaly
achieved
94
Points in our test and therefore passed. The test was carried out in the test period
11/24
and is stored in our database under the licence number
241112002
. 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 observation and do not include long-term or laboratory tests. The test ratings reflect the opinion of our experts and are based on careful analysis. We would like to emphasize that these evaluations do not claim to be exhaustive and reflect both subjective and objective impressions. The assessments 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 reputable and thorough testing process, which has been developed in a long and professional process in close cooperation with our experts.

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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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Our product evaluations are carried out exclusively through direct, on-site tests. This ensures a detailed and specific examination of the product properties. You can find more information about the test procedure here.

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