Frozen vs. Fresh: Spinach (2024)

We tend to glorify “freshness” when it comes to food. It has been beaten into our collective consciousness that fresh foods are better for us than their pre-cooked or frozen equivalents. But in actuality, when it comes to fruit and vegetables, research says the nutritional difference is negligible. Case-in-point: spinach.

Spinach is well-known for being loaded with nutrients and antioxidants. It’s an excellent source of vitamin A, C, and iron, and experts believe it may help prevent cancer and reduce blood pressure levels. But what about frozen spinach? Despite what you may think, it has been proven again and again that cooking or freezing spinach results in no loss of nutrients. This begs the question: why aren’t we always buying the stuff frozen? Isn’t it more convenient and cheap than the leafy, expirable, cook-twelve-pounds-to-end-up-with-two-tablespoons bundles of fresh spinach?

Let’s get into it.

Frozen spinach is mechanically chopped, boiled or blanched, and then flash frozen. A single ten ounce package of frozen spinach usually equals one cup of greens once it’s thawed and drained. To get that same cup with fresh spinach, you’d have to cook down about a full pound. Why go through this grueling process when you could just let the machines do it? Frozen spinach is a huge timesaver and a wiser financial decision. You can cheaply buy a few boxes of frozen spinach (which run about a dollar a piece) vs. paying twice as much for a few bunches of the fresh stuff in the produce section. Unless you’re making a salad or prefer a softly wilted spinach, there are limited reasons to buy fresh.

I have embraced frozen spinach for many reasons. Mainly, I love making steakhouse-style creamed spinach. It’s a knockout side dish, and one I regularly make for friends and family when we have dinner. Creamed spinach is utter decadence: a fat-filled side dish that isn’t shy about taking vegetables and perversing it into something drastically unhealthy. Here at Sporked, we don’t really delve into the world of home cooking too much, but just FYI, you can easily whip up a good creamed spinach with two store-bought ingredients: canned alfredo sauce and frozen spinach. Simply thaw the spinach, squeeze out the excess water, and heat it up with the alfredo. Sprinkle in some of your favorite meltable cheese, and go to town. Nothing fancy, as Alison Roman would say.

I have found that very few creamed spinach recipes online call for fresh greens. Why is that? I have a feeling it’s because cooks and writers know that frozen spinach is a practical powerhouse. Food should be accessible, especially when you’re asking people to take the time to cook, and most people keep frozen spinach on hand. It excels at versatility. There’s not a stew or soup that couldn’t benefit from a little frozen spinach. Put it in smoothies, add it to stir fry, toss it with pasta. Keep your freezer stocked with this powerful vegetable artillery, and deploy it when necessary. I have peas, carrots, mango, pineapple, and blueberries hanging out in my freezer at all times. And frozen spinach is just another easy way to sprinkle some good decisions into my diet whenever I see fit.

So what exactly is the downside?

Well, frozen spinach comes absolutely packed with water. A lot of water. You have to squeeze it out. So much so that it’s an arduous, painstaking task that feels like punishment for kids in the 18th century. “Nathaniel! Go squeeze the spinach right this instant,” I imagine early settlers who somehow had refrigeration systems saying to their disobedient children. I know what you’re thinking: Do I actually have to squeeze and drain frozen spinach? Yes, dude. If you want to do it right (I believe in doing it right), it must be squeezed. Frozen spinach must be drained or else you’re just eating a mouthful of water. Sure, it might take almost a half roll of paper towel to get rid of that moisture. But if you can handle all this extra work, trust me, frozen spinach is worth it.

Moreover (if you haven’t guessed yet, I’m team frozen), fresh spinach is a pain in its own right because it goes bad quickly. And every day it sits uncooked, it loses nutrients. Frozen spinach is cooked and frozen at its peak, keeping its nourishment intact. I would argue that this makes frozen spinach the consistently healthier option, unless of course, you grow your own or shop at a farmer’s market regularly.

In addition to its finicky shelf life, fresh spinach has limited uses. If I’m making a salad, I typically go for crunchier greens like iceberg, rainbow chard, kale, watercress, or romaine. Spinach is too light and leafy for most salads, in my opinion (although I do like my mom’s spinach salad that she makes for every holiday). The sweet spot with spinach is when it’s already cooked, and like french fries, there’s a machine for that.

The convenience and practicality of frozen spinach make it too hard to pass up, which is why I reach for it more often than fresh spinach. These rock hard bricks of condensed leafy greens have been staples in my family home growing up, as they may have been in yours. They’re a symbol of usefulness and practicality, and they offer allthe convenience of spinach without any significant loss of nutrients. That’s marvelous when you think about it. When ingredients remain healthy and convenient, packaged food ends up being spectacularly beneficial and life-enhancing rather than poisonous and detrimental to our well-being. It’s time to flip the script when it comes to frozen vs. fresh vegetables, and we can start with spinach.

Frozen Vs. Fresh Spinach: Frozen Wins

Frozen vs. Fresh: Spinach (2024)

FAQs

Frozen vs. Fresh: Spinach? ›

We prefer frozen spinach over canned because it has better flavor and is lower in sodium. Plus, 1 cup of frozen spinach has more than four times the amount of nutrients—including fiber, folate, iron and calcium—compared to a cup of fresh spinach, so if you want to power up, do it with frozen spinach.

Is frozen spinach just as healthy as fresh spinach? ›

Even better, one cup of frozen spinach has more than four times the amount of nutrients, including iron, vitamin C and calcium, compared to a cup of fresh spinach.

How much frozen spinach is equal to fresh spinach? ›

One package (10 ounces) of frozen spinach leaves yields about 1-1/2 cups after cooking. Therefore, you can substitute 1 package (10 ounces) frozen spinach leaves for 1-1/2 pounds of fresh spinach.

Does freezing spinach remove nutrients? ›

In general, the nutrients and other protective compounds in spinach are similar whether you use fresh or frozen. But compared to the frozen form, freshly harvested spinach provides more folate, a B vitamin that some studies have found may prevent heart disease, according to the American Heart Association.

Does frozen spinach have the same amount of iron as fresh spinach? ›

4.92 milligrams in one cup canned spinach. 3.72 milligrams in one cup frozen spinach. . 81 milligrams in one cup raw spinach.

Is frozen spinach a superfood? ›

Yes! Spinach is a nutritional powerhouse. It's low in calories but high in vitamins, nutrients and filling fiber — making it a superfood.

Does freezing spinach remove oxalates? ›

Compared with the content before freezing, vegetables prepared for consumption by cooking after frozen storage contained less oxalates, except for total oxalates in parsnip and soluble oxalates in beetroot and celeriac.

How to replace frozen spinach with fresh? ›

A good rule of thumb is fresh spinach cooked down equals about a cup and a half, which is roughly the equivalent of a 10 oz frozen package.

Should you use fresh or frozen spinach in smoothies? ›

In short, yes you can use frozen spinach in your smoothie. And research suggests that using frozen spinach is actually better than using fresh spinach. That's because the nutrients in raw spinach deteriorate from the moment it's picked.

How much does 1 cup of spinach cook down to? ›

Perhaps the most impressive thing about spinach is the magic trick it pulls when you cook it. When cooked, spinach reduces to less than 10% of its original volume when fresh. That means over ten cups of fresh spinach will cook down to one cup.

Why can't you freeze spinach? ›

Can you freeze spinach? You definitely can, and the result serves fabulous flavor when you start with freshly picked leaves. You won't be able to serve the thawed product in fresh salads, but frozen spinach is versatile in the kitchen. Learn how to freeze spinach, along with easy ways to use the final product.

Can you eat too much spinach? ›

What's bad about spinach? If you eat spinach every day in excessive amounts (more than a bowl) there can be adverse health effects. Most commonly these include gas, bloating and cramps due to its high fiber content. Eating too much spinach can also interfere with the body's ability to absorb nutrients.

What are the pros and cons of spinach? ›

When eaten in moderation, spinach helps in reducing the risks of high blood sugar, high blood pressure, and cancer. Although it is safe for most people to eat a bowl of spinach per day, you should be careful to eat it in moderation. Spinach is a dark leafy green crop with an impressive nutrient profile.

Why use frozen spinach instead of fresh? ›

Frozen spinach can be subbed in pretty much any place you'd normally be cooking raw spinach. And since raw spinach is watery, you'll probably need to cook it down anyway—otherwise, it'll release its water and change the texture and flavor of your finished dish.

What is the drawback of using spinach as an iron supplement? ›

Many people think that spinach is a good source of iron, but spinach also contains a substance that makes it harder for the body to absorb the iron from it.

What vegetable has more iron than spinach? ›

Lentils. These small legumes are not only high in protein and fibre, but they're also packed with iron. One cup of cooked lentils contains about 6.6 mg of iron, which is more than four times the amount found in a cup of cooked spinach.

Is frozen spinach a processed food? ›

Frozen fruits and vegetables are processed, but they often retain their nutritional value because they are frozen at their peak ripeness. Canned beans and tomatoes also are minimally processed, so their nutritional benefits are preserved.

Does frozen spinach have more potassium than fresh? ›

Spinach. Spinach is one of the most nutrient-dense vegetables. Just 1 cup (190 grams) of frozen spinach packs 12% of the DV for potassium. Similarly, about 3 cups (90 grams) of raw spinach contain roughly 11% of the DV ( 8 , 9 ).

Is it better to eat spinach fresh or cooked? ›

Spinach. The leafy green is packed with nutrients, but you'll absorb more calcium and iron if you eat it cooked. The reason: Spinach is loaded with oxalic acid, which blocks the absorption of iron and calcium but breaks down under high temperatures. What Do You Really Get When You Buy Organic?

Does blanching spinach remove nutrients? ›

Blanching is carried out only to such an extent that the most heat stable enzymes, such as per- oxidase, are barely inactivated. Blanching involves an unavoidable loss of nutrients such as ascorbic acid and sucrose and the loss is especially serious for leafy vegetables owing to its large surface-to-volume ratio.

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