In the run-up to the test, we defined practical requirements and established the following test criteria:
- Scope of functions
To be able to evaluate these criteria, we have defined several tests for the hot beverage vending machines. The devices are put into operation as recommended by the manufacturer. In a first test run, all vending machines are filled with water and it is tested how the taps can be handled. It is also assessed whether the liquid flows out of the tap in an appropriate quantity and evenly. Furthermore, it is tested how long the hot beverage vending machines need to bring the water to boiling point.
When tapping the hot water, it is measured whether the water temperatures correspond to the temperature settings and whether there are any deviations. In the course of this, it is also tested how long it takes to heat up the liquid. During the test runs, the power consumption of all devices is also measured. Furthermore, the hot beverage vending machines are tested for risk of burns and overheating protection. After the test runs with water, the whole process is repeated with mulled wine. Finally, the cleaning of the vending machines is evaluated.
In order to exclude errors and to ensure that the test is not affected by everyday use, each test is carried out in several runs.
The test criteria are given percentages according to their importance. The final mark is finally calculated objectively from the test criteria using an algorithm.
Our product selection is based on the observation of the current market. In addition to popular brand products, we also include insider tips in our selection. Criteria such as price and range of functions are an important factor for us. The test field is also determined by analysis and evaluation of customer reviews and external tests (e.g. Stiftung Warentest).
The devices are purchased anonymously or lent to us by the manufacturer. Dealers and manufacturers have no influence on the tests and our evaluation.
As soon as new relevant products come on the market, our test field will be expanded to include them. The new products undergo the same tests as already tested devices.