Defect and tolerance
Creasing on oranges, and the flesh underneath
Creasing is a split inside the white layer of the rind. The grooves you can feel from outside are what that collapse leaves behind. The flesh is never reached, and reaching the flesh is the exact condition the citrus standard attaches to skin defects, so the argument runs on extent instead.
The figures
| Other names | Clareta in Spanish, albedo breakdown in Australia |
|---|---|
| Where it starts | In the albedo, the white inner layer, which cracks and leaves depressed grooves in the outer rind |
| What it is associated with | Poor calcium uptake in humid springs, thin rind, rind ageing on the tree, excess nitrogen and water stress |
| Which fruit is more prone | Oranges more than mandarins |
| Where the standard puts it | Progressive skin defects, permitted slight in Class I and permitted in Class II, both only where the flesh is unaffected |
| Orchard practice against it | Gibberellic acid in midsummer, calcium and boron nutrition, balanced potassium to nitrogen |
What it changes on an order
You are buying at the tail of the campaign
Rind ageing on the tree is one of the drivers, so incidence climbs as the season runs on. The same orchard offered in spring carries a risk it did not carry before Christmas, at the same class and often at the same price.
You hold fruit in your own cold room before selling
A creased rind is a weakened rind. The clause worth citing is the one about keeping quality rather than the one about appearance, because that is where the cost actually lands for you.
Your graders work from photographs
A thumb finds creasing faster than a camera does. A team trained to inspect by eye alone will pass lots that a team handling the fruit would have pulled, and the difference shows up a week later.
What this note does not settle
- The standard never uses the word creasing. It is read through the clause on skin defects, and where slight ends is a judgement rather than a measurement.
- How a creased lot holds up depends on your own storage conditions, which we cannot see and do not model.
- We have no measured incidence on our own harvest and no nutrition records confirmed by the grower.
Source: Commission Delegated Regulation (EU) 2023/2429, Annex I Part B Part 2 (specific marketing standard for citrus fruit), IRTA, Manual descriptivo de podredumbres y fisiopatías en naranjas y mandarinas, Citrus Australia, Practical steps to minimise albedo breakdown
The collapse happens where you cannot see it
Start from the inside. The white layer under the skin cracks first, losing its structure in small fractures, and the outer rind then sinks into those gaps. What reaches your eye is the final stage of something that began two layers down. That order explains why the flesh comes through untouched, and why the standard's wording about skin defects reaching the flesh fits this disorder so neatly.
It also explains why a creased orange still eats perfectly well. Nothing whatever has happened to the juice, the segments or the flavour. The commercial damage is entirely about how the fruit presents and how long it will hold, two separate questions that buyers tend to collapse into a single word.
The later you buy, the more of it there is
Rind ageing on the tree is among the drivers, and that alone makes creasing a seasonal risk rather than a constant one. An orchard offered in early winter is not offering the same fruit as the same orchard in spring, even under an identical class at an identical price. Late campaign buying carries this, alongside the other consequences of fruit that has hung a long time.
Nutrition and water in the orchard shift the odds too, and growers work against it with summer treatments and with calcium. None of that is visible in a box. If keeping quality matters to you, ask what was done and when, and accept that a grower who has not recorded it cannot invent an answer afterwards.
Talk to the grower
Tell us the variety, the sizes and the delivery week you need. You get a delivered price and what we can commit to in writing, from the person who picks the fruit.
The grower handles enquiries. Response times are still to be confirmed.