Egyptian mango ships hard and green. That is deliberate, because a mango picked at eating ripeness will not survive fourteen days in a reefer. What happens after the container doors open decides whether the buyer sells graded fruit at a good price or clears a pallet at a loss. Ripening is not complicated, but it is unforgiving of guesswork, and the protocol differs by variety.
What arrives in the box
Fruit loaded at correct maturity arrives at 10 to 12 C pulp temperature with flesh firmness in the range of 9 to 12 kg force on an 8 mm probe. Skin will be green to green with a blush depending on variety. Internally the flesh has already turned yellow at the stone, which is the sign that dry matter was correct at harvest. If the flesh is white at the stone, the fruit was picked immature and no ripening room will fix it. Maturity indices are covered in our note on Brix, dry matter and firmness on Egyptian mango.
The ripening cycle
Start by warming the fruit. Move pallets from carriage temperature to 20 to 22 C over twelve to twenty four hours. Dosing ethylene into cold fruit wastes the gas, because the receptors are not active below about 15 C.
Once at temperature, apply ethylene at 100 parts per million for 24 to 48 hours in a sealed room, with air circulation across the pallets and carbon dioxide held below 1 percent. Carbon dioxide accumulation is the most common fault in older rooms and it blocks the ethylene response. Vent the room or use a scrubber.
After gassing, hold at 20 C and monitor firmness daily. Keitt typically takes five to seven days from gassing to a firmness of 2 to 3 kg force, which is the point most European and Gulf retailers accept as ready to eat. Kent runs faster, usually four to six days, and softens more evenly. Naomi sits between the two and holds colour well, which is why it suits displays where fruit sits on shelf for several days.
Keitt is the variety that catches buyers out. It stays green when ripe. A Keitt at 2 kg force with full flavour still looks unripe to a consumer expecting yellow skin, so retail programmes on Keitt usually need shelf labelling or a ripeness sticker. Kent develops more colour and is easier to merchandise without explanation.
Stopping the process
Once fruit reaches the target firmness, drop the temperature to 8 to 10 C to slow further softening. Do not take ripened mango below 8 C, because chilling injury on soft fruit shows within two days as pitting and off flavour. At 8 to 10 C a ripened mango holds three to five days. At ambient it holds two.
Plan the ripening slot before the vessel arrives. Room capacity is the constraint that turns a good arrival into a distressed sale, and a 40 ft reefer of 4,160 cartons — 20,800 kg net in the 5 kg carton — needs the space booked in advance. Buyers running weekly programmes should stagger arrival dates rather than take two containers on the same berth.
Season position
Early August is the right moment to plan ripening capacity for the remainder of the season. Keitt is at peak now and will run into October, which means the highest volume arrivals are still ahead. Current variety positions are in our early August 2026 market update, and shipping windows for the tail of the season are set out in planning September and October Keitt shipments.
Nile Prime ships Keitt, Kent and Naomi from Alexandria, Damietta and Sokhna on Incoterms 2020 terms, with pulp temperature and firmness recorded at loading so your ripening room starts from a known baseline. To discuss a programme or request arrival specifications, message us on WhatsApp at +20 10 9911 1918.