Brix and maturity standards decide whether a container is accepted at full value or discounted on arrival. For Egyptian export produce in 2026/2027 the governing number changes by crop: citrus is judged on juice content and the sugar to acid ratio rather than sugar alone, mango on dry matter and flesh firmness, and table grapes, pomegranate and melon on degrees Brix read straight from a refractometer. Writing the wrong index into a specification is one of the more common causes of an arrival dispute that neither side can settle.

What a Brix reading actually measures

Degrees Brix is total soluble solids in juice, read on a refractometer and expressed as grams of sucrose equivalent per 100 grams of solution. It is a proxy for sweetness, not a measure of it. A fruit can carry 14 degrees Brix and still taste sharp if titratable acidity is high, which is why several crops are specified on a ratio instead of on a single figure.

Citrus is judged on juice content and ratio

The UNECE standard FFV-14 sets maturity for citrus in terms of minimum juice content and a minimum sugar to acid ratio. For oranges that means roughly 33 to 35 per cent juice by weight depending on the variety group and a ratio near 6.5 to 1. Mandarins sit at about 33 per cent juice with a higher ratio, usually 7.0 to 7.5 to 1. These are entry conditions, not quality targets. A Valencia picked at the legal floor in March will still disappoint a juice packer expecting 11 degrees Brix. The published UNECE texts are available through the UNECE agricultural quality standards library.

Brix and maturity minimums by crop

How the reading is taken matters as much as the number

A single fruit tells you nothing. Egyptian packhouses working to buyer specification normally read a composite of 10 to 20 fruit drawn across the pallet, not from the top layer. Watermelon is read at the heart because the rind end can sit three degrees lower. Mango is read on flesh after the sample has been allowed to reach room temperature, since a refractometer on cold juice reads low. If a specification does not name the sample size and the sampling point, two honest laboratories can produce readings two degrees apart on the same lot.

What to write into the contract

Name the index, the minimum, the sample size, the sampling point and the tolerance. A clause reading “minimum 15 degrees Brix, composite of 15 fruit drawn from three pallets, measured at the packhouse before loading, tolerance minus 0.5 degrees” is enforceable. “Good sweet quality” is not. Where the lot is destined for processing rather than fresh sale, state the Brix separately, because juice-grade Valencia and fresh-grade Valencia are picked from different blocks on different dates. These checks sit alongside the physical grading described in our guide to pre-shipment inspection on Egyptian produce, and the harvest windows behind each figure are set out in the Egyptian produce export calendar 2026/2027.

PEI Trade is the exporter here, not a neutral reviewer. The figures above reflect what we test to and what our buyers write into contracts, and they should be checked against your own market’s entry requirements.

Request a specification sheet

Tell us the crop, the destination and whether the fruit is going to retail, wholesale or processing, and we will send the maturity clause we would sign against, with the sampling method written in. WhatsApp +20 10 9911 1918 or use the contact form on this site.