The Hammacher Schlemmer Institute's tests reveal the one Ultrasonic Jewelry Cleaner that can, in its opinion, be called The Best. The Institute forwards its recommendation to Hammacher Schlemmer's buyers so they can procure the product for The Hammacher Schlemmer catalog, web site, and retail store. The Ultrasonic Jewelry Cleaner that is currently The Best can be found here.
Before undertaking testing, The Hammacher Schlemmer Institute surveyed consumers to learn which attributes are most critical when purchasing an Ultrasonic Jewelry Cleaner. They responded that Jewelry Cleaning Effectiveness is by far their most important concern, followed by Ease of Use and Features. These attribute rankings were applied to the data collected for this test.
Respondents were also asked which features matter most in an Ultrasonic Jewelry Cleaner. Based on their answers, The Best model must have a maximum fill line on the tank, a digital timer, a beeping sound to indicate when cleaning is complete, and a display screen.
The Hammacher Schlemmer Institute then researched the marketplace from a reasonably wide range of competing product and obtained Ultrasonic Jewelry Cleaners that possess these desired attributes and features. Prior to testing, the Institute eliminated from consideration any models that did not have a required attribute or feature or if it had an obvious quality issue. Conversely, if a sample offered a unique benefit that distinguished it from other models, The Institute, at its discretion, may have included it in testing even though it may have been lacking a critical feature or attribute.
Testing involved evaluations by Institute analysts and a lab. Each Ultrasonic Jewelry Cleaner was rated for its Jewelry Cleaning Effectiveness, Ease of Use and Features.
Before the models were evaluated for cleaning effectiveness, they were pre-tested to ensure they will cause no damage on various types of jewelry as well as to knock out any models that didn't perform. The Analyst dirtied up jewelry with hair gel, lotion, and other debris and placed them into each jewelry cleaner. The cleaners were run for 1 cycle and then the jewelry was assessed. Any units that visibly had a lot of debris still on them were disqualified from the next round of testing. All units were then sent to an independent lab for further testing.
At the lab, clean earrings, necklaces, and rings were sprayed with hairspray and perfume, tossed in a mixture of hair gel, mousse, lotion, make-up, sweat, and dirt, and then baked in an oven for an hour to solidify the debris. The jewelry's "dirty" weight was then measured to four decimal places and recorded.
Next, the cleaners were filled with a mixture of detergent and hot tap water, and the soiled jewelry pieces were cleaned for three minutes. When the cleaning cycle was complete, the jewelry was rinsed in hot tap water and allowed to air dry, and then weighed again.
This final weight was compared to the initial "dirty" weight to determine the percentage of dirt that was removed during cleaning.
Analysts then took the average of the scores and determined a final Jewelry Cleaning Effectiveness score.
For each Ultrasonic Jewelry Cleaner, analysts determined how easy it was to:
Analysts also took into consideration the Size of the tank.
Analysts assigned a score each step, with lower scores indicating a process was very difficult and higher scores indicating it was very simple. After testing, analysts calculated an average ease-of-use score for each Ultrasonic Jewelry Cleaner.
Institute analysts inspected each sample to determine whether it had any of the following features, which made an Ultrasonic Jewelry Cleaner easier or more effective to use:
Analysts awarded points for each feature that a model had, weighted according to how important that feature was to consumers. After testing, they calculated an average features score for each sample.
The Hammacher Schlemmer Institute recommends that you consider these features when shopping for an Ultrasonic Jewelry Cleaner to ensure you will be completely satisfied with its performance:
To get your heirloom jewels sparkling like new, you don't have to trust them to a professional. With an ultrasonic jewelry cleaner, you can safely clean everything from rings to eyeglasses to tableware at home. Simply place your necklace, precious coin, or even dentures into the stainless steel tank, add warm water, and let the cleaner do its work within minutes. Using sound waves to generate vibrations, millions of bubbles will begin to form in the water, banging against each other and your jewelry to dislodge dirt and residue. The cleaners are gentle and effective on small stones and intricate detailing, without any dangerous scrubbing or chemicals. For dirtier jobs, you can add a little detergent. Some models have a clear lid, so you can monitor your precious gems during the quick process, and many feature a display screen that will show the minutes remaining in the cycle. When the cleaning is complete, the dirt remains in the water. Just rinse off your jewelry and admire its shine.
As with any product, customers must read and follow the product's user guide, marking and labeling prior to use.
The Hammacher Schlemmer Institute was founded in 1983 as an independent, not-for-profit corporation to provide independent testing and consulting services for Hammacher Schlemmer. The Hammacher Schlemmer Institute was founded in 1983 as an independent, not-for-profit corporation to provide independent testing and consulting services for Hammacher Schlemmer. Although funded by Hammacher Schlemmer, the Institute functions independently of Hammacher Schlemmer. The Institute consults Hammacher Schlemmer and fulfills its mission statement without regard to product prices, brand names, margins, or other commercial considerations. Decisions on specific products to test, the types of test to perform and how to interpret the results lie exclusively with the Institute's research staff. In addition, the Institute's status as a separate entity from Hammacher Schlemmer prevents access to sensitive information, such as inventory levels or product cost, which might influence testing decisions. The Institute's independence assures products are researched, evaluated, and rated objectively without commercial bias.