Live or shelf stable, and why you cannot be both

What processing costs you

Heat ends the fermentation. That is the point of it, and it is also the loss: the culture is what a live-ferment customer is buying, and a processed jar does not have it. If the product is sold on being live, processing is not a shelf-life improvement, it is a different item.

What staying live costs you

A cold chain, and everything that follows from it. A live product has to stay cold from your room to the customer, which rules out a large part of the route to market that a shelf-stable jar can use, and it shortens the window in which the product is what the label says. The jar also keeps changing: a live ferment is not static, so the product a customer opens in month three is not the one you packed.

The decision is upstream of the jar

This is why the question sits in this section rather than in the bottling one. The container, the closure and the label all follow from it, and so does the headspace. A live product producing gas in a sealed jar is a pressure problem, and it is the reason the closure decision for a ferment is not the same as for a quick pickle.

• Shelf stable: processed, two-piece lid, a long shelf life you can state.
• Live: refrigerated, a closure that tolerates pressure, and a shelf life that is short and honest.

Pick one per product, not per batch

Both are legitimate businesses and some makers run both, but not out of the same batch and not under the same label. Deciding per batch is what produces a product line nobody can describe, and a customer who does not know whether what they bought needs a refrigerator.

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