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The Daily Insight

How do they harvest olives

Author

Emily Dawson

Published Mar 30, 2026

Traditionally, picking olives is done by hand, even in commercial groves. Today, more growers use modern machinery to help them harvest the crop. At the lowest end of the spectrum, this may only mean using a long handled, vibrating tong to shake the olives from the branches and onto nets spread out under the tree.

How do farmers collect olives?

HARVEST: Harvest generally starts in early September and concludes in mid-November. California Ripe Olives can be harvested by hand, or with a mechanical harvester. For hand-harvesting, crews use ladders to reach the fruit and carefully pick the olives off each branch, tree by tree.

How do you pick olives from a tree?

Harvested olives must be “cured” to remove the bitterness in order to make them palatable. The most common curing processes use brine, dry salt, water, or lye treatments. During these curing processes the water-soluble oleuropein compound is leached out of the olive flesh.

Can you eat olives straight off the tree?

Are olives edible off the branch? While olives are edible straight from the tree, they are intensely bitter. Olives contain oleuropein and phenolic compounds, which must be removed or, at least, reduced to make the olive palatable.

Why do they harvest olives at night?

Night-time harvesting is done because the cool temperatures better preserve the olive flavours. However, the super-intensive machines used suck up countless numbers of birds, many of which use the trees as a resting place while on their migratory journey between Europe and North Africa.

What is healthier black or green olives?

If you’re trying to boost your vitamin E intake, green olives are a healthier option than their black counterparts. People who need to limit their sodium intake should make olives only an occasional part of their diet, but black olives are the better option when you do include them in a meal or recipe.

What do you do with olives after you pick them?

The easiest and quickest way to cure olives at home is with water. In this method, the freshly picked olives are sliced or cracked to expose the interior of the fruit, and then immersed in water, which is changed once a day for five to eight days and then soaked in finishing brine with salt and vinegar.

Are there unsalted olives?

Unsalted olives are ideal for those who prefer the pure and clear taste of olives without salt. They combine the authentic olive flavor with the natural way of processing, without pasteurization, without chemical additives and without adding salt in all their production stages.

Are olives poisonous to dogs?

Dogs can eat olives in moderation. … But an olive now and then won’t hurt him. While olives themselves don’t contain any toxic ingredients, the pits pose some hazards. Olive pits may cause choking or obstructions in dogs.

How do I know when my olives are ready to be picked?

Olives are typically ripe in the late summer or early fall. Ripe olives are black or dark purple, shaped like an oval, and should have a spongy exterior. Olives typically start as green olives and get darker as they become riper. Ripe purplish colored olives are less bitter and pungent than green olives.

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How do you prepare black olives straight from the tree?

Cut two slits in each olive and then place these into a tub filled with water to cover. Keep the olives submerged and change the water every day, for 6 days. On the next day, instead of re-filling with water, pour over some plain white vinegar (the cheap no-name brands will do) and leave overnight.

How do you tell when olives are ready to pick?

Pick the olives when they nearly ripe, when they have begun to change colour from green to pinkish purple but are not fully black. When most of the crop have become this colour, harvest all the olives off the tree. It is best to begin the pickling process straight away.

Are olives bad for birds?

The answer to this question is no, parrots cannot eat olives. Whilst olives are considered a healthy food for humans, it is not the same for parrots. It may be tempting to feed your parrot a little bit, but it’s best to stay on the safe side, and keep your savoury snack to yourself!

Do birds nest in olive trees?

Olive-tree warbler – Wikipedia.

Is olive oil safe for wild birds?

Olive oil is fine to use with birds. It’s as healthy for them as it is for humans.

Can you eat wild olives?

They may be sweet, but eaten raw they are slightly toxic and may cause dizziness. Early Texas settlers used the fruit to make a perfectly safe and delicious jelly . They used syrup derived from the fruit as a cough medicine, a dye for cloth and a folk remedy for rheumatism .

How fast do olive trees grow?

Growing at less than 12 inches per year, the olive tree is found most abundantly in Mediterranean climates and in U.S. Department of Agriculture hardiness zones 9 through 11. In the United States, it’s abundant in California and Arizona.

Can you brine olives in stainless steel?

Pour one gallon of cold—not tepid, not hot, but cold—water into a stoneware crock, a glass container, a stainless-steel pot, or a food-grade plastic pail. Under no circumstances should you use aluminum, which will react with the lye and make your olives poisonous.

Why are my olives fizzing?

Long answer: Bubbling, fizzing, pressure etc. indicates some kind of microbiological activity that is unwanted for properly canned food – canning should eliminate these organisms.

How long do olives take to cure?

The olives should take about a month to six weeks to become cured depending on the size of the olive. When cured, they will be shriveled and soft. Strain the mixture. Either sift out the salt by pouring the olives over a screen, or pick the olives out of the salt and shake them out one by one.

What is the red thing in an olive?

“Sweet” (i.e., neither sour nor savory) pimiento peppers are the familiar red stuffing found in prepared Spanish or Greek green olives. Originally, the pimiento was hand-cut into tiny pieces, then hand-stuffed into each olive to balance out the olive’s otherwise strong, salty flavor.

Why are there no green olives on pizza?

Green olives are for the most part intended to be eaten raw. They are cured not cooked. This is, I believe, why they don’t typically appear on pizzas. … If you canned green olives, it would cook them, and that’s not what you want for a cured olive meant to be eaten raw.

What does olives do in a woman's body?

Olives are very high in vitamin E and other powerful antioxidants. Studies show that they are good for the heart and may protect against osteoporosis and cancer. The healthy fats in olives are extracted to produce olive oil, one of the key components of the incredibly healthy Mediterranean diet.

Can dogs eat bananas?

Yes, dogs can eat bananas. In moderation, bananas are a great low-calorie treat for dogs. They’re high in potassium, vitamins, biotin, fiber, and copper. They are low in cholesterol and sodium, but because of their high sugar content, bananas should be given as a treat, not part of your dog’s main diet.

Are olives pickles?

That’s because the olives we enjoy are essentially pickles. Whether steeped in oil or a salt brine, olives only become truly edible after curing. The raw fruit is bursting with oleuropein, a bitter compound that must be removed prior to eating. … After the olives are cured they are placed in a pickling brine.

Can cats have olives?

In general, olives are not a dangerous food for cats; they’re considered safe for them to consume in very small quantities. … They’re regarded as healthy snacks for humans, but olives should be considered purely empty-calorie treats for cats.

Why are olives so expensive?

Artisanal oils demand a higher price because they are usually made in small batches, with olives from a single source and have greater depth of flavor. Much like wine grapes, higher quality olives produce higher quality oils and demand a premium price. Simple, because it’s hard to make.

Why are black olives so salty?

Olives are typically high in salt due to the fact that they are cured or packaged in brine or salt water, containing about 0.6g salt per five olives. The NHS recommends no more than 6g salt for adults, and between 2g-5g a day for children depending on their age.

Does Rinsing olives reduce sodium?

For example, rinsing and draining capers or olives would barely make a dent in the sodium content because they are preserved with a salty brine solution and absorb the sodium. But for an item like canned beans, draining the juices cuts some sodium, while rinsing and draining shaves even more.

Can you pick olives in the rain?

It’s impossible to pick olives in rain, wind, or fog for many reasons: besides the obvious dangers and difficulties of climbing trees and ladders in wind and rain, moisture can cause the olives to spoil in their crates before they are taken to the mill, or frantoio, for pressing.

What is the difference between kalamata olives and black olives?

Black olives are generally smaller than Kalamata olives. They are squatter and more of the traditional olive shape that you would imagine. Black olives also have a much stronger taste. Their flavor really packs a punch, whereas Kalamata olives are much more subtle.