Do I Need to Soak My Grains? (2024)

Do I Need to Soak My Grains? (1)

"Do I Need to Soak Grains?"

"Many grains take a long time to cook and I've heard soaking them overnight can shorten this time or produce better end results. Is it true?"

I loved eating steel-cut oatmeal as a kid, but I've rarely made it as an adult because frankly, by the time I'm thinking about breakfast, I'm way too hungry to wait the half-hour for it to cook. On the surface, the idea of soaking the oats in water overnight to speed up their cooking time seems logical enough—but does it work?

The Test

Grains that you buy at the store are typically treated in one of three ways: Whole grains have had only their inedible husk removed, leaving behind the bran, germ, and endosperm layers. Think of them as something like shelled, skin-on nuts. Polished grains like pearled barley or white rice have had most of their bran layer removed. Cut grains like oatmeal are whole grains that have been chopped into smaller pieces for faster cooking.

How would each of these three types of grains fare with and without an overnight soak? To find out, I soaked whole-grain barley, pearled barley, and steel-cut oats overnight, with and without salt, then cooked them side-by-side with grains that hadn't been soaked first.

As it turns out, there's not all that much logic to the results.

The Results

Whole-Grain Barley

Do I Need to Soak My Grains? (2)

Whole grains are the holy (whole-y?) grail of the health-food set. The trouble with them is that the layer of bran surrounding each grain acts as a barrier, slowing down the rate at which water can penetrate to the center, so they can take a while to cook. The good news is they're hard to overcook—the bran retains a pleasant chewy texture even after prolonged cooking. (For more on whole grains, check out our handy guide.)

So, how did soaking affect their cooking time? Actually, not too much. The whole-grain barley soaked overnight cooked up the next day in 35 minutes (salting made no difference in timing or texture), while the cooked-from-dry grains took only five minutes longer. Flavor-wise, there wasn't much difference.

The verdict? Don't bother soaking whole grains—the payoff is barley worth the effort. (Yup, I just wrote that.)

Polished (Pearled) Barley

Do I Need to Soak My Grains? (3)

The first thing I noticed after soaking the pearled barley overnight was that it had changed color, from a light beige to a murky gray. As you can see in the photo above, the two examples of soaked pearled barley are gray, while the un-soaked one remained beige throughout cooking. As for cooking times, the soaked ones, both with and without salt, were ready in just half the time, 15 versus 30 minutes. Despite the color differences, the flavors of all the batches were comparable.

Moral of the story: So long as you don't mind off-colored, drab-looking grains, pre-soaking pearled barley can save you some cooking time.

Steel-Cut Oatmeal

Do I Need to Soak My Grains? (4)

Based on the first two tests, I was fully expecting the oats to follow the trend of cooking faster after a good soaking: While they're technically a whole grain, steel-cut oats have been chopped into tiny pieces, exposing plenty of inner-grain surface area for the water to penetrate without having to go through the bran. To my surprise, the oats all cooked up into creamy oatmeal in 35 minutes, irrespective of soaking and salting. Guess I'll be sticking with eggs as my quick-cooking breakfast staple.

What does this mean?

Well, mainly that soaking grains isn't necessarily going to speed things up, and salting doesn't seem to make a (salt-)lick of difference. And when soaking does help, as in the case of pearled barley, it doesn't always look pretty. If you don't care about appearances and are desperate to knock 15 minutes off the time it takes to cook polished grain, go for it. I, for one, will just accept my grains as they are and wait patiently for them to do their thing.

That, or I'll reach for something I know will work: my pressure cooker.

Do I Need to Soak My Grains? (2024)

FAQs

Do I Need to Soak My Grains? ›

Soaking is not necessary but it does appear to make it easier to digest and breaks down the phytic acid that blocks absorption of some nutrients. See this article from Food and Nutrition Magazine for more information.

What happens if you don't soak grains? ›

If you've been eating whole grains, nuts and seeds for years without soaking, don't stress. A small amount of phytic acid is reduced just by the cooking process alone. But for minimal effort, you can significantly improve the digestibility and nutrition of these important foods.

Is soaking grains necessary? ›

Oats, rye, barley, wheat and quinoa should always be soaked (or fermented). Buckwheat, rice, spelt and millet can be soaked less frequently. Whole Rice and whole millet contain even less phytates so it's not necessary to always soak. Flax seed does not require soaking if eaten in small amounts.

How long should you soak your grains? ›

However, there are some exceptions to the 24 hour soaking rule for seeds and grains: Some grains benefit from a longer soak including barley, rye and wheat. These are better digested when they soak for 3-4 days, swapping out the water each day.

Which grains are soaked in water before cooking? ›

Common foods you must always soak before eating
  • 1/6. Essential soaking secrets. ...
  • 2/6. Legumes (Beans, lentils, chickpeas) ...
  • 3/6. Grains (Rice, quinoa, oats) ...
  • 4/6. Nuts and seeds. ...
  • 5/6. Whole grains and whole wheat flour. ...
  • 6/6. Vegetables.
May 15, 2023

Are all grains eaten after soaking? ›

Just as with nuts, soaking grains and legumes is essential for proper digestions. When eating grains and legumes that haven't been soaked, the phytic acid binds to minerals in the gastrointestinal tract and cannot be absorbed in the intestine and to many bound minerals can lead to mineral deficiencies.

What are the benefits of soaked grains? ›

Soaking grains can help improve their digestibility and nutrient absorption. Soaking also breaks down phytic acid and reduces cooking time.

What grains are best soaked? ›

Buckwheat Groats:

It's creamy texture is similar to farina. Buckwheat has a relatively high phytase content (the good enzyme that breaks down phytic acid), so if you opt to soak it, be sure to keep the soak time to 7 hours max, or it will become to pasty/mushy.

Does apple cider vinegar destroy phytic acid? ›

Soaking flour or whole grains in water with an acidic medium such as apple cider vinegar or lemon might sound bizarre, but it's a practice that has been used around the world for centuries. The acidic environment helps to “wake up” up the enzyme phytase, which begins to break down phytic acid.

Can we eat seeds without soaking? ›

Micronutrients that are found in good amount in the nuts and seeds like calcium, iron, zinc, selenium do not get absorbed in our body if we consume them raw. Soaking them overnight is the best way you can wash away the phytic acid. Soaking them overnight also reduces the amount of Tannic acid.

Can you eat raw soaked grains? ›

Before eating raw grains, it's important to soak and sprout them to make it easier for your body to digest and absorb their nutrients. To adhere to the raw food principle, don't eat anything heated above 115 degrees Fahrenheit.

How to remove phytic acid from grains? ›

Milling is the most commonly used method to remove phytic acid from grains. This technique removes the phytic acid but also has major disadvantages as it also removes major parts of minerals and dietary fibers. Soaking is widely applied and most important method in germination and fermentation process of cereals.

What happens if you don't soak pearl barley? ›

Do you have to soak barley before cooking? Pearl barley does not need to be soaked prior to cooking because it cooks quickly. Hulled barley benefits from soaking in water for a few hours before cooking. However, you should still budget more time for the hulled grain to cook (about 35 to 40 minutes).

What happens if you don't soak legumes? ›

Here's the thing: Beans that have not been soaked ahead of time will always take longer to cook, but they will, indeed, cook. But timing aside, sometimes we actually like to cook beans straight from dry, as is the case with this easy black bean soup recipe.

Did our ancestors soak grains? ›

Our ancestors, and virtually all pre-industrialized peoples, soaked or fermented their grains before making them into porridge, breads, cakes and casseroles.

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