Water activity is one of those measurements that sounds academic until the week your gift boxes are sitting in a warehouse for four extra days because a courier got backed up, and you're not sure whether the wheel inside is still what you shipped. Our Water Activity & Shelf Life webinar runs next week, and the timing isn't an accident — this is the exact question the holiday shipping season puts in front of members every year, and it's better answered before the boxes go out than after a complaint comes in.
The session is free and virtual, which has been the format for this one since it first ran, because the audience for it is wide: cheesemakers who want to understand what's actually happening inside a rind as it ages, quality managers writing shelf-life claims for a label, and counter staff who field the "how long will this keep" question a dozen times a shift during the gift-box rush. You don't need a lab background to follow it. You do need to have wondered, at some point, why two wheels made the same week from the same vat can behave differently once they leave a controlled cave.
What the hour actually covers
The session walks through what water activity measures and why it predicts spoilage risk better than moisture content alone — two cheeses can have identical moisture percentages and very different water activity readings, which is the detail that trips up a lot of shelf-life claims written from instinct rather than measurement. From there it moves into practical territory: how packaging choice affects water activity drift during shipping, what a reasonable shelf-life claim looks like for a soft-ripened wheel versus an aged one, and how to think about the gap between "safe" and "still tastes like it should" — because those are two different failure points, and a label that only accounts for one of them is missing something.
If you've been through the Listeria Control in Small Creameries course, this webinar is a natural companion rather than a repeat — that course is about your process controls inside the creamery, and this session is about what happens to the product after it leaves your hands, which is a question a lot of smaller operations haven't had the time to think through carefully. Members shipping direct to consumers for the first time this season, in particular, have told us this is the piece of their operation they understand least.
Getting on the registration list
Registration is open now on the member portal and stays open until the session starts — there's no cap, since it's virtual, but a live spot lets you ask questions in the room rather than emailing them afterward. A recording goes up for members within a few days if the timing doesn't work, though we'd still encourage attending live if your schedule allows it; the questions other members ask during the Q&A tend to cover cases the prepared material doesn't anticipate. If you've got a specific packaging or shipping question you already know you want answered, send it to the Education Committee ahead of time and we'll try to fold it into the session directly.
Either way, this is a good one to put on the calendar before the case gets busier, not after.
The International Cheese Federation (ICF) and More Cheese are entirely fictional. This post is demonstration content created for MemberJunction. All people, organizations, events, courses, certifications, figures, and quotations in it are invented, and nothing here represents a real association, a real business, a real person, or real professional advice.