How to Test for Yeast and Mold in Food & Beverages with Accuracy

Yeast and mold are common microbial contaminants in foods and beverages. They can affect shelf life, flavor, texture, and product safety in many products spanning baked goods, fruit, dairy, and fermented drinks.
SimpleLab offers two certified mail-to-lab kits to measure total yeast and mold levels with professional accuracy: the Yeast and Mold Food Test kit for solid foods and the Yeast and Mold Beverage Test kit for liquids like juices, kombucha, beer, and more.
How Do You Test Food and Drink for Yeast and Mold?
Yeast and mold are types of fungi that thrive under moist or warm conditions in a variety of foods and beverages. Detecting them accurately requires culture-based laboratory testing — not DIY strips or dip tests, which will miss low-level contamination.
SimpleLab’s process is straightforward:
- Collect your food or beverage sample using the provided materials.
- Send it to our certified laboratory using the included overnight shipping label.
- Receive your digital report detailing the total yeast and mold count (reported in CFU/g).
All testing follows standard enumeration techniques via AOAC Method 2014.05, ensuring reliable and defensible results.
Who Is This Test For?
These tests are designed for anyone involved in preparing, selling, or consuming perishable foods and drinks who needs deeper insight into microbial quality:
- Small food and beverage producers verifying shelf stability or spoilage issues.
- Home fermenters and brewers checking for overgrowth in kombucha, cider, or beer.
- Quality assurance teams monitoring microbial contamination in production batches.
Whether you’re investigating unexpected spoilage or validating sanitation processes, SimpleLab’s Yeast and Mold Test Kits provide clarity and confidence for every sample.
Frequently Asked Questions
Can I test both food and beverages with one kit?
No. Each kit is designed for a specific sample type—solid (food) or liquid (beverage)—to ensure accurate and reproducible results.
Why test for yeast and mold?
Excess growth can cause spoilage, off-flavors, and in some cases, health concerns. Lab testing helps identify contamination before products reach consumers.
How long do results take?
Results are typically available within 7 business days after the lab receives your sample.
Questions? Contact Us
SimpleLab makes certified food and beverage testing easy and accessible.
If you have any questions about testing with SimpleLab, reach out to our customer support team any time.
The SimpleLab Standard
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Proven Reliability: SimpleLab partners with North America's leading analytical institutions—including Eurofins, Pace Analytical, SGS, and Microbac—each with their own rigorous quality control protocols to ensure top-tier accuracy. Our certified labs are located across all 50 states, making logistics a breeze.
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Simplified Sampling: Every kit includes professional-grade materials, clear instructions, automated chain of custody, and free return shipping— making accurate testing effortless.
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Seamless Experience: We combine human support with automated logistics to help make complex lab analyses accessible to all. From our user interface to our lab reports, we ensure a time-saving, frustration-free process.
Sam brings expertise in water chemistry and environmental engineering to support scientific standards at SimpleLab. She earned Bachelor’s and Master’s degrees in Environmental Engineering and has experience in environmental analytical chemistry research.
About SimpleLab
SimpleLab combines world-class laboratory science with customer service to ensure testing your environment is simple, fast and factual. Everything we do is driven by data and supported by a team of experts ready to answer your questions.





