Food Science: When Good Carrots Turn Green (2024)

Emma Christensen

Emma Christensen

Emma is a former editor for The Kitchn and a graduate of the Cambridge School for Culinary Arts. She is the author of True Brews and Brew Better Beer. Check out her website for more cooking stories

updated May 12, 2022

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Food Science: When Good Carrots Turn Green (1)

And this time we’re not talking about “environmentally-friendly carrots”!

If you’ve ever sliced into a freshly-baked carrot cake only to find that the shreds of carrot have turned green, you will probably agree that this is a rather disconcerting experience, to say the least.

Why does this happen and is our cake safe to eat? For these answers and more, read on!

Harold McGee, author of On Food and Cooking, explains that carrots turn green when the batter “contains too much baking soda, or when the soda isn’t evenly mixed in the batter.”

Carrots contain pigments that are sensitive to changes in pH balance. When the shreds of carrot come into contact with the alkaline baking soda, a chemical reaction takes place that causes the pigments to change color.

Ipso facto, green carrots!

If your carrots turn inexplicably green with a recipe you’ve used many times before, the likely culprit is that the baking soda didn’t get fully dispersed throughout the batter.

If your carrots are turning green every time you make the recipe, the ratio of baking soda in the recipe is probably off. Try reducing the amount by a quarter teaspoon next time you make the recipe.

Unappetizing though they may be, cakes and loaves with green carrots are perfectly safe to eat and taste no different than normal cakes!

Blueberries, sunflower seeds, and walnuts are also reactive to alkaline environments and experience similar color changes when the amount or distribution of baking soda is off.

Have a food science question? Let us know!

Related: Graffiti Recipes: The Secret Carrot Cake of Pasanen

(Image: Flickr member .marn licensed under Creative Commons)

Food Science: When Good Carrots Turn Green (2024)

FAQs

Food Science: When Good Carrots Turn Green? ›

Harold McGee, author of On Food and Cooking, explains that carrots turn green when the batter “contains too much baking soda, or when the soda isn't evenly mixed in the batter.” Carrots contain pigments that are sensitive to changes in pH balance.

When carrots turn green? ›

Some pigments are sensitive to pH balances and will change colour if they are in a very acid or very alkaline environment. In the case of carrots they can change from orange to green if they are in a cake batter which is too alkaline and the alkaline in the ingredients comes from the bicarbonate of soda.

Can you eat a carrot if the top is green? ›

And the carrot tops (AKA greens, AKA leaves) have a similar nutritional profile to carrots; they are rich in vitamin A, C, K, and potassium. Don't toss those greens. Reduce food waste by using the whole carrots and their leafy tops. Carrot tops can be used in soups, salads, and pesto, and you can also saute them.

What causes greening in carrots? ›

Greening of the top of the carrot is caused by sunlight. Heavy rain can wash away the soil from carrot roots exposing them to the sun. An off-flavor is often associated with this green color. Remove the tops before consuming or canning the carrots.

What does a green center in a carrot mean? ›

What you see: Green inside your carrot What it is: Chlorophyll that developed after excess sun exposure Eat or toss: If it's just a green ring, like you. Read it. Read it.

What happens when carrots turn green? ›

Carrots contain pigments that are sensitive to changes in pH balance. When the shreds of carrot come into contact with the alkaline baking soda, a chemical reaction takes place that causes the pigments to change color. Ipso facto, green carrots!

How can you tell if carrots are good? ›

If your carrots feel slimy and look discolored, are wilting or soft, or show signs of mold, they should be tossed. The white blush on carrot skin is OK to eat—it just means the carrots are drying out and need water. Unpeeled carrots are protected by the skin.

What is the green top of a carrot called? ›

Also called carrot greens, carrot tops are the frilly greens visible above the soil. If you only buy baby carrots or bulk carrots in a bag, you probably don't see this part often. Not only are these emerald-hued greens edible, they're delicious.

Are carrots OK to eat if they are bendy? ›

Yes! Limp carrots are typically just dehydrated. Submerge the carrots in ice-cold water until the crispness is reconstituted.

Which part of carrot is not edible? ›

Final answer: The edible part of the carrot is the Carrot Root. This is where the plant stores its nutrients, making it sweet and nutritious for human consumption. Other parts of the carrot, like the leaves and stems, are also edible but are not usually eaten.

How to get carrots to grow bigger? ›

Carrot Care. To grow strong, straight carrots, the soil must be loose, deep, well-drained, and moist. Preparing the soil and removing obstacles like rocks and sticks is key. Thinning plants and relentlessly pulling up weeds also go a long way when it comes to growing carrots that are as beautiful as they are tasty.

Are split carrots safe to eat? ›

How to Select Carrots. Choose carrots that are firm and deep in color. Avoid carrots that are soft or split. Visible dirt should be scrubbed and rinsed off of carrots before using them.

Can I eat carrots that are green? ›

Carrot greens are just as edible as carrots themselves, and they're delicious in this tangy chimichurri sauce, pesto, and more. Today, we're making chimichurri out of carrot greens! I don't know who ever spread the idea that vibrant carrot tops should be tossed.

What color do you turn if you eat too many carrots? ›

When high levels of beta-carotene are consumed, not all of the pigment is converted to vitamin A. Some of it is circulated in the blood stream. If these high levels are sustained for some time, the skin may begin to take on an orange hue, a condition known as carotenemia.

What is the best color carrot? ›

Classic orange carrots are sweet and juicy. Purple carrots have an earthy flavor, with some peppery notes. Red carrots are dense and less sweet than the other varieties. Gold/white carrots are super sweet, with a mellow flavor.

Can you do anything with carrot greens? ›

Carrot tops are high in vitamin C, vitamin K, and potassium. Use them as you would parsley, or in place of parsley in recipes. Strip the leaves from the tough stems, add them to stock or soup, put them in salads, or make chimichurri.

What are yellow carrots called? ›

There are at least three known types of carrots: Imperator, Danvers and Nantes. Yellow carrots are Nantes type varieties, having both round shoulders and a blunt non-tapered tip. They have a firm and crunchy texture and an earthy sweet flavor with notes of celery and parsley.

What do different color carrots mean? ›

Nutrition: Carrots' bright orange colour comes from beta-carotene, which acts as an antioxidant and is converted to vitamin A in your body (white and yellow carrots have less beta carotene; in yellow and purple carrots, lutein represents almost half of the total carotenoids).

How do you know when carrots are too old to eat? ›

Carrots that have spoiled or gone bad will usually have an odor, a slimy texture, or dark discoloration. They may also be wilted or soft. If you see mold growing on carrots, throw them out. The white blush that forms on carrots signals that your carrots are drying out.

How do you revive old carrots? ›

Have you ever had carrots that go limp? Revive them completely by peeling them and leaving them in cold water in the refrigerator for about 8 hours. The carrots will absorb the water and crisp them as if you just pulled them right out of the ground.

Why did my carrot water turn green overnight? ›

The carrots in the pot are reaching a high temperature for a longer period of time, which oxidizes the pigments in the carrot causing them to change from orange to green upon cooling.

How long does it take for carrots to ripen? ›

Carrots should be ready for harvest about 60-80 days after sowing seeds, depending on the variety. The tops of the carrot roots will be about 3/4 to 1 inch in diameter and likely starting to pop out of the soil, though not necessarily.

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