The Promise, Written Down
We have said from the beginning that every grain of our salt could be traced. For a long time that was a promise. This month it became a record, and every talho got a number.
From the first day we wrote anything about this salina, we made the same claim: that our salt could be traced back to the exact pan it came from, on the exact day it was harvested.
It was true in the sense that we knew. Custódio has worked these talhos his whole life and could tell you, standing on the wall, which pan gave what. But a thing that lives in one man’s head is not a record. It cannot be handed to an auditor, or to a buyer in Warsaw, or to you.
This month that changed. Every active talho now carries a number, and every harvest is logged against it.
For a long time that was a promise. This month it became a record.
- The harvestWhich talho, which day, how much, and by whose hand. Logged at the pan, not written up afterwards from memory.
- The salinityMeasured and recorded as the brine moves through the system, so the conditions behind each crystal are part of the file.
- The originLab analysis tied to the batch, and the batch tied to the pan. That is the chain a QR code needs in order to mean anything.
Every talho has a number
Last year our father brought thirty talhos back into production. The old crystallisation pans of Marinha 3 and Marinha 4, rebuilt by hand from ground that had been left to dry for four decades.
This month we marked each one. A post, a plate, a number. It looks like a small thing standing in the mud, and it is the reason everything above is now possible. Thirty six more are being rebuilt as we write this, in Marinha 5. Those will be numbered too, later this summer.
The recording itself runs on SalOS, a platform built here in Castro Marim. Ours is the first artisanal salt production to use it.
What the record does not do
We want to be precise about this, because precision is the whole point.
A record is not a certification. The system we use does not certify anything and does not pretend to. It documents what was done, and it lets a producer show a certificate they already hold. Our DOP application is still with the European Commission, and the audit that would let us carry the DOP mark on a bag has not happened yet. Organic certification is a separate framework again, and as we wrote earlier this month, its future for salt is being decided in Brussels.
So the honest version is this. The record does not make our salt better. It makes our claims checkable. We believe that is the more useful thing.
Why the radio came
On 20 July, RTP Antena 1 broadcast a report from these pans on Portugal em Direto, and the Câmara Municipal de Castro Marim came out the same day to document it.
What drew them here was not us. It was the fact that a four generation salina with hand tools and clay walls is now also a place where the method is written down as it happens. Those two things are usually told as opposites. Standing on the cômoros in July, they are simply the same morning’s work.
The 2026 Safra is the first harvest that will carry this from end to end. When you scan the code on a bag, the pan it names is a real pan, with a post in the ground and a number on it.
— From Castro Marim to your table — recorded in every grain.