Techniques: Raw Milk Microbiology Guide

In 2012, a consortium of French scientists published a practical guide to raw milk microbiology aimed at farmhouse cheesemakers interested in fostering the natural microbial diversity of their milk. They show that healthy and stable microbial communities contribute to cheese safety (as evidenced by some of the research into the microbial biofilms on wooden boards used for aging Reblochon), and are also crucial to cheese flavour.  [click to view the full story]

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Surveying cheese rind microbial diversity

What happens when you collect 137 cheeses from around the world and sequence their DNA? You end up eating a ton of cheese. But more importantly, you learn a lot about what bacteria and fungi live in a typical cheese rind, that sea salt may be a previously unrecognized source of cheese microbes, and whether the notion of ‘microbial terroir’ holds up in artisan cheeses. In this Science Digested, I provide a digested version of recent research that used new DNA-sequencing approaches to broadly survey the microbial diversity of artisan cheese rinds.

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Microbe Guide: Sporendonema casei

If you’ve ever spotted bright orange patches on the rind of a cheese, there’s a good chance it was Sporendonema casei. While orange may instill a sense a fear, this orange mold isn’t out to get you. It’s a benign mold species that contributes unique aesthetics and flavors in cheese rind ecosystems. [click to view the full story]


Biodiversity of the bacterial flora on the surface of a smear cheese

Brennan et al., Appl. Environ. Microbiol. 2002, 68(2): 820-830. What organisms grow on the surface of a semi-soft, pasteurized washed rind cheese during the course of its development? How does inoculation with a commercial strain of Brevibacterium linens affect the development of the rind microbial community? This paper sheds some light on these very pertinent questions.  [click to view the full story]

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Profile: Julie Cheyney – Maker of St Jude Cheese

Julie Cheyney makes a raw-milk lactic cow’s milk cheese called St Jude in Hampshire, UK. Before starting to make St Jude, Julie was on the team that developed Tunworth, a Camembert-style cheese that won Supreme Champion at the British Cheese Awards in 2006. We spoke with her about making raw milk cheese and the microbes that play a role in the process.
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