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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

Aflatoxin in Dog Food. Being Proactive is Best

In recent news with the major recalls of many pet food brands due to concerns of potentially elevated levels of aflatoxin, it is important that pet food manufacturers stay ahead of the curve and implement a robust aflatoxin testing program. According to the FDA, no illnesses have been reported yet but aflatoxin is a major ... Continued
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Mould Toxins & Nickel in Oat Flakes

Oat flakes are often an essential part of breakfast, whether in porridge, muesli or yogurt, oat flakes are versatile and healthy. Oat flakes contain vitamin B1 and B6 as well as protein and are therefore ideal for starting the day. It is therefore all the more important to carry out regular checks to ensure the ... Continued
Labocor Analítica Logo

Labocor Analítica joins Tentamus Group

The Tentamus Group is excited to announce that Labocor Analítica, a laboratory specialising in animal feed, is now part of the international network of laboratories. Based in Madrid, Labocor Analítica has more than 25 years of experience in which it has consolidated its position as a reference laboratory in the analysis of products related to ... Continued
Nutri Score Germany

Nutri-Score: From November on in Germany

On October 9, 2020, the German Bundesrat decided to voluntarily introduce the NUTRI-SCORE food traffic light. The 5-segment traffic light system is intended to simplify food labelling for consumers and help them to eat healthier. From November 2020, food manufacturers will thus be able to label their food with the Nutri-Score on the front of ... Continued

Fake honey and what you can do about it

Honey adulteration is a major issue and the fight against fake honey will be a long and arduous one, but let’s start at the beginning.   How is commercial honey produced? Honey bees and a few other related insects are responsible for making the sweet, viscous food substance that is mostly produced by secretions, regurgitation, ... Continued

Tomato juice - a pleasure not only above the clouds

Many people find tomato juice tastes better up in the air. This is due to the low air pressure high above the clouds. However, even if you don’t fly, tomato juice doesn’t only taste good as Bloody Mary. In order to ensure a carefree enjoyment of tomato juice, 20 different juices made from tomato concentrate ... Continued

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