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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

Tentamus España - New Website

Tentamus launches its Spanish Website

The Tentamus Group is happy to announce the launch of the Tentamus website in Spanish featuring all analytical services and industries covered by Tentamus Group: Food & Feed, Agriculture & Environment, Pharmaceuticals & Medical Devices, Cosmetics as well as Agrosciences Services. The new website is aligned with the corporate identity of Tentamus Group and is ... Continued

Risk evaluation of nitrosamines in pharmaceuticals

As of October 2020, EMA and the national competent authorities are asking marketing authorisation holders for metformin-containing medicines to test their medicines before releasing them onto the market. The risk evaluation for chemical medicines should be completed at the latest by 31 March 2021 and 1 July 2021 for biological medicines. If a risk is ... Continued

Ethylene oxide residues still found in sesame seeds

Sesame seeds and sesame products have been recalled from the market many times in the recent past due to ethylene oxide residues. In a recent test, sesame seeds and foods containing sesame were tested and elevated levels of ethylene oxide were still detected in four of 44 products. Ethylene oxide is a pesticide used to ... Continued

Possible faults in vegan minced meat

Worldwide, more and more people live vegan, i.e. they avoid all animal products for various reasons. Therefore, the market for vegan meat alternatives such as vegan minced meat is booming, so that a bolognese or a chili can also be prepared vegan.   Mineral oil components do not taste vegan as well   In a ... Continued

How to Collect Samples for Pesticide Residue Testing

Now, before you even get to collecting itself, you will need to prepare adequately for it. Here are some of the things that you should consider. Personal Protection Equipment (PPE) – Since there is a very high chance of personal contamination, you will need to protect yourself by wearing appropriate personal protective equipment, including masks, gloves, and ... Continued

New Pollen analysis - Judgement according to variable literature

The judgement of unifloral honey by pollen analysis is done in accordance with the requirements of EC honey directive (2001/110/EC) according to which unifloral honeys must have certain microscopic, physical-chemical and organoleptic characteristics. In Germany many unifloral honeys are regulated in the German Guideline for honey in more detail. Beside the minimum pollen content, the ... Continued

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