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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

TentaConsult Pharma & Med

Tentamus Group founds Pharma-Consulting Company

TentaConsult Pharma & Med   Münster, 06.07.2020 The Tentamus Group is expanding its business portfolio by launching a new company which will focus on consulting for pharmaceuticals and medical devices. The new company TentaConsult Pharma & Med GmbH will have its headquarters in Münster, Germany, and will start its business as of today. Ralf Sibbing, ... Continued
Ethoxyquin in Salmon

Antibiotics & Contaminant Ethoxyquin In Farmed Salmon

Samples from farmed salmon show increased levels of the contaminant ethoxyquin. The formerly used plant protection product is still allowed as a preservative in animal feed, but there are fixed maximum limits for ethoxyquin in food. In so-called aquacultures, fish such as salmon are bred to reduce overfishing of wild stocks. Ethoxyquin is often added ... Continued
Self-monitoring-spices

Call for increased self-monitoring of spices

In recent years, the legal maximum levels for heavy metals, mycotoxins and pesticides in spices have frequently been exceeded. Therefore the Federal Office of Consumer Protection and Food Safety (BVL) is calling on importers and manufacturers to carry out more checks themselves.   How do heavy metals, mycotoxins or pesticides get into spices?   Mycotoxins ... Continued

Fc Receptor Testing - A VelaLabs "Let's Talk About" for Download

July 2020: VelaLabs again offers you a free download entitled “Fc Receptor Testing – a Useful Tool for Assessment of Monoclonal Antibodies“. It gives a short overview about types of Fc receptors and  their physiological role as well as strategies for the assessment of antibody-FcR interactions. Further information can be found by following link: Fc ... Continued
Analysis of cannabis extracts according to DAB monograph

Change of the analysis of cannabis extracts according to DAB monograph

On 1 June 2020, the long-awaited monograph “Cannabis exractum normatum” in the German Pharmacopoeia (DAB) came into force. This monograph provides the basis for a variety of THC and/or CBD cannabis extracts and allows the use of different carrier oils. The monograph “C-054 Adjusted, refined cannabis oil resin” in the German Drug Codex (DAC), which ... Continued
Testing the in-use stability of medicinal products

Testing the in-use stability of medicinal products

Your product is in good hands – we test for shelf-life after opening (in-use stability) The shelf life of a medicinal product is indicated by the expiry date. For tablets in blister, the shelf life corresponds to the expiry date indicated on the outer packaging. The situation is different for drugs in containers with the ... Continued

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