Microbial Analysis of Wine & Juice

Baker Wine & Grape offers microbial analysis. We can examine your wine or juice under the microscope for evidence of microbes. We offer cultures for detection of yeast, spoilage yeast and spoilage bacteria. We can culture for bottle sterility and perform Velcorin trials prior to bottling. We can count your yeast cells and verify the percentage of live yeast cells.

We are now using Invisible Sentinel for Brett, Pediococcus and Lactobacillus DNA analysis.

  • Four hour test
  • Same technology used to detect food pathogens
  • Detects low levels of Brettanomyces bruxellensis before it becomes a problem

Click here to watch a video!


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Stop by the lab for complimentary sample tubes!

1. Microscans - Samples are examined microscopically and observed for yeast, bacteria, mold or other small particles.

2. Bottle Sterility – What’s growing in your bottled wine? Hopefully nothing. 300 mL of a bottled wine can be cultured to detect yeast, bacteria or mold – thus ensuring that your bottling has been clean.

3. Cultures

a. WL - Wallerstein Nutrient Broth – for growing yeast, bacteria and mold

b. WLD – Wallerstein Differential Broth – for growing bacteria

c. Brett– Brettanomyces Differential Broth – for growing Brettanomyces

4. DNA Analysis – PCR analysis for the DNA of Brettanomyces Bruxellensis or

5. Yeast Cell Counts and Viability – Flow cytometry for accurate counts of yeast as well as percent viablity


Test Sample Size Price
General Microscan 50mL $22
Bottle Sterility 750mL $22
Cultures 50mL $22
DNA - Brett or Pedio/Lacto 50mL $55
Yeast Count & Viability 50mL $44