White Ooze Out of Sweet Potatoes – What The?!

What is the white stuff that comes out of sweet potatoes? That white substance that is squirted out of sweet potatoes is normal sap, which is a mix of starch and sugar. It’s not hazardous in any way and is perfectly safe to eat.

Sweet potatoes are an excellent food item to keep in your pantry always. They’re delicious, versatile, and full of nutrients. What’s not to love about sweet potatoes?

But, the look of the white substance from your potato may be enough to make you turn off the potato.

Hope you’ll be willing to try again but, since it’s not just normal, it could be an indication of a sweet potato!

If you’d like to know details about white ooze that is common on sweet potatoes continue studying.

We’ll also talk about other issues that people have with sweet potatoes. We’ll also allow you to enjoy your food at peace in knowing what’s about and what’s simply the nature of things being strange.

What Is The White Ooze In Sweet Potatoes?

A lot of vegetables leak an oil-like substance when cut. Chayote, squash, as well as sweet potato, are some of the more popular.

There is a tonne of theories about why some potatoes lose sap while others do not. Some of the most commonly used theories are:

  1. The more sweet the potato, the more likely it is to develop white ooze since it’s the sugars that are leaking out.
  2. Organic sweet potatoes are much more likely to contain milky residues due to something about the production of large quantities decreases the amount of milky starch. It is unclear if this is a genetic modification of the seeds, using various pesticides and fertilizers, or if some other factor is not clear.
  3. The younger the sweet potato, the more likely it will be to release white fluid. This is since as sweet potatoes age they dry out. This makes them unlikely to spill any kind of liquid.

Therefore you can be sure that not only is the white sap safe, and doesn’t have reason to be concerned It could also be an indication the sweet potato you have is organic, sweet, fresh, or even all three!

Sweet Potato White Spots

Depending on how you’re cooking your sweet potato, there may not be any white sap or you might notice it in various ways.

A sweet potato baked which has been scrubbed but not cut in any manner is likely to not show any sign or evidence of starch in liquid form.

If you cut a sweet potato completely but you will detect some milky liquid forming a thin layer on the outside of your potato. You can remove it before cooking, but it’s acceptable to eat.

If you cut the sweet potato in half, then open the potato, you could be able to see tiny white spots appearing on the inside of the potato.

It’s just sugar and starch getting through the potato’s flesh through the smallest gap they can get from.

If the white spots are tiny and scattered across your potato or are larger and concentrated in specific regions The milky sap does not cause harm and can be washed away easily, although it may be sticky when touched.

After being cooked the starch will not be sticky, and you won’t see it in your potatoes.

Sweet Potato White Flesh

If you’ve purchased sweet potato with white flesh, instead of vibrant orange flesh that has the appearance of white spots, or white liquid you could have bought yourself a Yam.

In the majority of regions of North America, yams are wrongly described. The yams that are usually referred to are a kind of sweet potato that is soft.

Proper yams generally have brown skins and flesh that is either white or purple and sweet potatoes feature orange flesh. If you have a sweet potato that is colored white, it most likely is one called a yam.

Sweet potatoes and yams have a similar flavor and texture, but sweet potatoes are less sweeter and have a drier texture.

How to Tell If A Sweet Potato Is Not Good

Sweet potatoes last for a long time when they are in the right conditions, however, even these vegetables get spoiled in time. There are several kinds of decay that you should look for, each of which has distinct signs that indicate the low quality of the sweet potato you are eating.

The most obvious indication that the sweet potato you’ve bought has gone bad is wrinkled and the skin is shriveled. If your sweet potato is beginning to shrink It is best to throw it out it, and don’t eat it.

Other commonly encountered issues concerning sweet potatoes are the pithiness, mold, or you can see holes inside your potatoes and/or dry insides.


Sweet potatoes can have dark spots that aren’t necessarily a sign that the potato is bad.

There is no need to be worried if, along with discoloration, you see visible mold.

Sweet potato mold can appear white and fuzzy or green around cuts or holes or it could appear and smell bad under their skins. potato.

If potatoes of all kinds turn rotten, you’ll get a strong smell. Don’t eat any potatoes with indications of mold or you could get sick.


When you’ve picked the sweet potato you planned to cook for dinner and noticed it was spongy in it, you might have found pithy potatoes. If you cut the potato open to reveal holes, you’ll be sure.

Sweet potato holes could be created when stored in an area that is too hot for their taste. Sweet potatoes can be picky and don’t like being in climates that are too hot or cold.

These potatoes can be safe to eat, but their texture can be affected and the taste is generally less appealing when compared to tubers stored in more optimal conditions.

A few tiny holes should be acceptable to eat, however, a very pithy potato is best to throw away since it’s not delicious.

Dry Out

Dry spots, whether on the outside or inside the sweet potato can be a sign of a potato that has been through its peak.

Dry spots on the surface are easily removed without noticing much difference in flavor or texture.

However, if you cut the sweet potato raw and discover that it’s dry inside, it can affect how the potato feels in the first place but it can affect the taste.

If you only have some dryness, you might be capable of boiling and smashing the potato without knowing better, however, it’s best to get rid of potatoes that have excessive dry areas within.

Growing Roots

If you begin to see that tiny roots or sprouts are beginning to form within the sweet potato’s eyes it is an indication that the quality is beginning to decline. It’s a pretty dead giveaway…

They’re safe to eat and taste great, however, the longer the roots continue to grow more undesirable the sweet potato becomes.

If you’re choosing among an array of sweet potatoes available in your kitchen make sure to select those which look like they’re growing first. Cut off the roots that are growing and then peel them or cook as usual.

Other Questions Asked

How Long Does Sweet Potatoes Last?

Healthy, fresh sweet potatoes can last in your fridge for three weeks before they begin to degrade by storage conditions.

To ensure that your sweet potatoes stay well-nourished throughout the time is possible to keep the sweet potatoes in a cool but not freezing – dry place in a dark, shaded area away from direct light.

Sweet potatoes are not a fan of fluctuations in temperature or extremes in either extreme cold or heat. They’re also more likely to go bad when exposed to water, so ensure that they’re dry throughout the year.

After you’ve cut your sweet potatoes, you will need to cook them within a couple of days. Keep your sweet potato in water to keep their oxidization and ensure that they are sealed or in an airtight jar or zip-lock bags.

Sweet potatoes that are cooked can be kept for several days in your refrigerator. Make sure to cook them in less than three days.

It is also possible to freeze sweet potato and sweet potato fries as well as a casserole. It is better to freeze them once they’ve cooked. They’ll remain in good condition for up to 1-3 months when frozen with care.

Why Does My Sweet Potato Taste Like Soap?

Humans can detect five distinct flavors: Sweet, salty bitter, sour, and umami.

Certain people are especially sensitive to bitter tastes called supertasters and others just don’t like tasting bitter food. If you notice that sweet potatoes smell like perfume or soap but they aren’t, they’re most likely bitter.

Sweet potatoes aren’t meant to be bitter. This could indicate that your potatoes have begun to decay or were grown under poor circumstances.

In any case, if you find that you find that your sweet potatoes are bitter, it is best to steer clear of eating them.

Does A Hollow Heart Potato Food Safe?

The appearance of hollow hearts in potatoes is like pithy potatoes but it’s more grave. In contrast to being caused by inadequate storage conditions, hollow hearts are typically caused by poor growing conditions.

If you open up the sweet potato and discover that it is hollow in the middle or has a huge brown, bruised region within the center, then you’ve got a hollow sweet potato.

Unfortunately, you’ll get fewer potatoes than you anticipated. However, the taste and texture shouldn’t be affected, and you can still eat the remainder of the potato without fear.

Norah Clark

Norah Clark

Norah Clark, the founder and editor of YummyTasteFood! She's a seasoned food writer and editor with over a decade of experience in the hospitality industry as a former pastry chef, sous chef, and barista. When not writing about food, she explores new recipes or travels the world for culinary inspiration.

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