The export problem that appears after the wine has left the winery

A wine can leave the cellar clear, sound and approved, then develop a problem thousands of kilometres away.

That gap between release-day quality and destination performance is the most useful business question in the final programme of EnoForum Web 2026, whose last day is today, 22 October. The scheduled sessions cover longevity, colloidal and calcium instability, quercetin precipitation, Brettanomyces control and protein stability.

This is an agenda, not a report of research results. It does not establish that faults are becoming more common or that one treatment suits every wine. It does give exporters a reason to connect the technical release decision with what happens after dispatch.

Release day is only the first test

An importer receives a wine after handling, storage and a journey that may differ considerably from a domestic delivery. The buyer's first experience is not the sample tasted before loading.

The Australian Wine Research Institute's transport and storage guidance explains that transport and storage conditions can affect sensory properties. It also recommends retaining samples under known conditions so that a wine involved in a complaint can be compared with stock that did not undergo the same journey.

For the export team, that creates a practical distinction. “The batch passed its checks” describes the departure. “We know which conditions were assumed, which tests were relevant and what we can compare it with” is a more useful answer when a buyer calls from the destination.

Different faults need different evidence

Today's programme separates several types of instability. They should not be collapsed into a single problem with a single solution.

The OIV monograph on fungal chitosan describes its use in wine stabilisation and in helping eliminate undesirable microorganisms such as Brettanomyces. The OIV's separate entry on treatment with bentonites identifies prevention of protein and copper hazes as its objective.

Those are descriptions of recognised oenological practices, not a treatment prescription for an individual batch. They are not a substitute for checking the applicable rules, running appropriate trials or asking the responsible oenologist.

A sales team needs enough technical understanding to ask the right question. It should not be choosing a cellar treatment from a conference headline.

The commercial cost starts with uncertainty

Consider a possible complaint: a buyer reports a visible change after arrival. This is a scenario, not a claim about a particular producer.

Before discussing credit or replacement, both sides need to establish what changed and how widely. Is it one unit, a batch or the full consignment? What were the storage conditions? Is there a retained sample? Who can evaluate the difference?

Without an agreed response process, the export manager may become the messenger between a frustrated importer and a technical team that lacks the destination history. Stock can remain on hold while each side tries to reconstruct the facts.

A short, usable batch record is more valuable here than a broad assurance that the winery takes quality seriously.

Prepare for the route you actually sell into

For a distant destination, ask the logistics partner and importer what is expected between dispatch and sale. Include the handling stages and the intended selling period, not just the estimated arrival date.

Then give that information to the person responsible for technical release. The recommendation is to make the assumptions explicit, not to impose an identical test programme on every wine or route.

If the shipment moves to a different season, a new warehouse or another distribution route, review those assumptions. A technical approval based on one set of conditions should not silently become an assurance about every future shipment.

A practical check for exporting wineries

Before releasing the next export batch, bring the export manager and technical lead together around one reference and one real destination.

Record the expected journey and selling period. Ask the technical lead which stability risks matter for that wine and what evidence supports release. Agree where the retained samples will be stored and how they will be identified. Give the importer a named contact and a clear way to report a problem with the batch reference and supporting information.

This is a proposed working method, not a guarantee against faults. Its value is that the first response can begin with evidence instead of a search for missing details.

For ViniAI's export work, the lesson is to include that handover in importer follow-up. A successful dispatch is an important milestone. It is not the end of responsibility for understanding the buyer's experience.

The strongest quality promise is one the winery can investigate when the wine is no longer under its control.