Most dates sold worldwide are still picked by hand, with a worker climbing the palm, cutting or shaking fruit bunches, and lowering them to the ground. From there, the fruit goes through sorting, cleaning, pitting, and packaging before it reaches store shelves. The full journey from tree to table involves several distinct stages, and the process differs depending on the variety and how ripe the fruit is at harvest.
Ripening Stages on the Tree
Dates don’t ripen all at once. They pass through three harvestable stages, each producing a noticeably different fruit. At the Khalal stage, dates are firm, crisp, and brightly colored (yellow or red), with mild sweetness. Many varieties are too astringent to eat at this point, though a few are enjoyed fresh. As the fruit moves into the Rutab stage, it softens, darkens to brown, and becomes juicier and sweeter. The final stage, called Tamar, is the one most people recognize: deep brown, wrinkled, intensely sweet, with concentrated sugars and low moisture. Tamar-stage dates are ideal for long-term storage and make up most of what you find in grocery stores.
Growers decide when to harvest based on the variety and intended use. Soft varieties like Medjool are often picked at the Rutab stage while still plump and moist. Semi-dry varieties like Deglet Noor are typically left on the tree longer to reach the drier Tamar stage, which gives them their characteristic firm, chewy texture.
Hand Harvesting: Still the Standard
Date palms can grow 20 meters tall or more, and the fruit clusters hang near the crown. The majority of dates harvested worldwide are still picked manually. A harvester wraps a rope around their back and the palm trunk, then shimmies up the tree to reach the bunches. Once at the top, they may pluck individual fruits, shake a bunch so ripe dates fall onto a tarp below, or cut the entire bunch and lower it with a rope.
This work is physically demanding and genuinely dangerous. Each technique requires a skilled climber, and falls are a well-documented occupational hazard. For shorter palms, workers sometimes use ladders, though these are often used without safety harnesses and can actually be more hazardous than the rope-climbing method. In some regions, hydraulic lifts or bucket platforms are used to raise workers to the crown, reducing the climbing risk while still relying on hand-picking.
Mechanical Harvesting
Trunk shakers, widely used in olive orchards, have been adapted for date palms in some large-scale operations. These machines clamp onto the trunk with hydraulic jaws and vibrate it at a controlled frequency, shaking ripe fruit loose. A catching frame or tarp spread beneath the tree collects the fallen dates. The hydraulic system allows operators to raise, lower, and tilt the shaking head to match the tree’s shape.
Mechanical shaking has a trade-off: speed versus fruit damage. In olive harvesting research, trunk shakers produced bruising levels 12 times higher than hand-picking, with much of the damage caused by fruit hitting falling branches on the way down. Reducing vibration frequency helps preserve fruit quality, but it also lowers the percentage of fruit that actually detaches. For dates destined for the fresh market, where appearance matters, many producers still prefer hand harvesting for this reason. Dates headed for processing into paste, syrup, or baked goods can tolerate more cosmetic damage.
Sorting and Grading
After harvest, dates are brought to a packing facility and sorted by size, color, and condition. In the United States, the USDA grades whole dates on a 100-point scoring system. Grade A (Fancy) dates score 90 or above and must be practically uniform in size, have good color, and be practically free from defects. Grade B (Choice) requires a score of at least 80, with reasonably good color and size uniformity. Grade C (Standard) sets the floor at 70 points. Each grade must consist of a single variety. Dates that fall below these thresholds, or that have cosmetic issues like cracked skin, are typically diverted to processing rather than sold whole.
Cleaning, Pitting, and Packing
Sorted dates are washed to remove dust and field debris, then run through industrial pitting machines. These machines feed dates from a hopper into a pitting chamber, where a blade or suction mechanism pushes the seed out of the flesh. The pits are collected separately, and the pitted dates move down the processing line. Some premium whole dates are sold unpitted, but most retail dates go through this step.
After pitting, dates may receive a light steam treatment or warm water rinse to soften them slightly, improve their sheen, and make the skin more pliable. This is especially common with drier varieties like Deglet Noor. The dates are then packed for retail, typically in plastic clamshells or trays. For bulk or long-term storage, packaging in nitrogen-flushed containers (which removes oxygen) helps prevent darkening and keeps insects out.
Pest Control and Safety
Dates are vulnerable to stored-product insects, particularly certain species of moths and beetles that can infest fruit after harvest. Fumigation is standard practice in the industry. Some facilities use controlled-atmosphere treatments, exposing dates to high concentrations of carbon dioxide, which kills insects at all life stages without leaving chemical residues. Research has shown a clear negative correlation between CO2 concentration and insect survival in stored dates.
Heat treatment is another option. A partial pasteurization at 60 to 65°C is enough to extend shelf life without damaging the fruit’s texture or flavor. Full sterilization isn’t practical because the high temperatures needed would break down the date’s structure.
How Variety Affects Processing
Soft dates and semi-dry dates require different handling throughout the process. Medjool dates are large, plump, and high in moisture, giving them that velvety, almost caramel-like texture. That moisture makes them more perishable. They need careful climate control during growing, prompt refrigeration after harvest, and typically last about six months in the refrigerator. Freezing extends their life considerably.
Deglet Noor dates are firmer, drier, and more forgiving. Their lower moisture content means they’re less prone to mold and can last up to two years when refrigerated in airtight containers. They’re also more tolerant of mechanical handling during processing, which is one reason they’re the variety most often used in chopped date pieces, date sugar, and baking products. Medjool dates, with their softer flesh, are more easily bruised during pitting and packing, so they tend to require gentler equipment settings and more hands-on quality checks.
Storage Conditions
Once packaged, dates keep best at 0°C (32°F), where they’ll hold their quality for 6 to 12 months. For longer storage, freezing at -18°C (0°F) is standard. Dates don’t actually freeze solid until about -15.7°C (3.7°F), so they remain somewhat pliable even in a home freezer, which makes them easy to eat straight from frozen.
Humidity matters as much as temperature. At higher relative humidity, dates absorb moisture from the air, which can promote mold growth and alter their texture. Moisture-proof containers are essential for any storage longer than a few weeks, whether at a warehouse or in your kitchen. A sealed glass jar or zip-top bag with the air pressed out works well at home.