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We are at your service!

Our laboratories are still open and reliably carry out your analyses.

Feel free to use our Live Chat if you have any questions or send your inquiry at tobias.wiezorek@tentamus.com.

Welcome to QSI America!
Experts in honey and agave syrup testing

Honey and bee products

Agave Syrup

Consulting & Training

QSI America – a Tentamus company

Global Service. Same Quality.

Our 14,000 sqft laboratory is located in Corona, California and operates since more than 17 years in the field of quality assurance.

At QSI America, the quality control of Honey and Bee Products is our specialty and we pride ourselves on our ability to facilitate large scale operations while still being able to provide personable quality service to our customers.
We are proud to show our roots which are based in QSI, Bremen, Germany. We took all more than 50-year knowledge and brought it to Corona, California to support the American market and offer high end solutions to your analytical needs in products such as Honey, Beehive Products, Agave Syrup.

We belong to Tentamus Group, a network of 55 laboratories worldwide and growing. Our network allows us to encompass a broad spectrum of services. As a group, we are your one stop shop for all your testing needs!

Feel free to contact us! We would be happy to answer any questions and provide advice concerning Honey product safety, hygiene, and quality control.

Lates News

The New FCC Honey Identity Standard

Some experts claim that honey is the third most adulterated food in the world. As the conversation around honey authenticity becomes more prevalent, as well as legal action against those who allegedly participate in counterfeit operations, a standardized guide for honey is becoming increasingly important.   As of December 1, 2021, the new Honey Identity Standard ... Continued

Cannabis Shelf/ Stability Studies

  Ensure shelf stability and longevity of your products with a shelf-life study at Columbia Labs! Shelf-life studies have been a staple of food safety in America for decades and are rising as a regulatory requirement across several emerging industries, especially cannabis and hemp-infused products needing to qualify for import, export and consumption. Columbia has ... Continued

Kratom Alkaloid Profile Expanded, Validated safety testing

Columbia Laboratories offers reliable, comprehensive contaminant and quality Kratom testing with an 8-business day turnaround time. Kratom Potency Testing Kratom quality, or “potency,” is measured by quantitation of distinct alkaloids. Kratom “potency” testing can be performed on a variety of matrices, from leaf material and extracts to tinctures and gummies. As of 2021, Columbia Labs ... Continued

Beta Glucans Testing is now available

Columbia Laboratories now offers quantitative testing for yeast and mushrooms! As the premier consumer safety laboratory in the Pacific Northwest for more than 30 years, Columbia Labs brings rock solid scientific fundamentals to the functional mushroom industry. “We are excited to offer this for our diverse clients who are pushing market doors open with innovative ... Continued

Systems and procedure packs

How to pack medical packages Both the MDD 92/43/EEC and the MDR 2017/745 allow packages of different products that are combined in a meaningful context for a specific intended use to be placed on the market. According to the MDD, these must be CE-marked products. The MDR also allows non-CE marked devices if their presence ... Continued

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