Why are my potatoes watery? (2024)

First off, different varieties of potatoes are better suited to baking. The russets, as grown in the United States and other areas typically do have a higher starch content or solids than do reds, and most of the yellow varieties, which are typically moist when boiled or baked. However, even within those russet varieties some potatoes may have more water content depending on where they are grown. For example, in Idaho, during the potato growing season we only receive 10-12 inches of rain. We have the advantage of being able to use irrigation from underground springs or nearby canals to add in moisture as needed rather than depending on Mother Nature to help us out. In my travels to other potato growing states, it is not unusual for the potatoes to get that much moisture in one or two rain storms. If the potato can’t shed that moisture it will absorb some of it and over a period of time will end up with lower solids. Soil or dirt has a lot to do with the solids content of the harvested potato. Potatoes grown in clay or very dense soil have a tendency to not be able to get rid of the moisture versus potatoes grown in sandy soil or volcanic soil; which is what Idaho soil is.

I spent some time in the San Francisco area in my youth… near earthquake faults. The earthquake scales go up in small numbers, but every step up can make a major difference in how much the earth shakes and the damage occurs. Think about potatoes using this scenario. At 16-18% solids, a potato is fairly moist and would be considered low solids for baking. At 21% you’ll get a beautiful baked potato, dry and fluffy inside. Above that, say 23-24% the potato may be too dry or make a fresh fry that breaks apart. So, the differences are not much in variation of the numbers to end up cooking up dry or moist. By the way, 21% solids means the potato still contains nearly 80% water. There’s a quick test for high solids… click on this link from a previous Dr. Potato posting:Idaho potatoes and “specific gravity”.

The last part of your question…watery potatoes are not really a result of storage. If a potato is stored without humidity it will dry up (shrivel) over a period of time because it is losing moisture. Hope this information is helpful to you.

Why are my potatoes watery? (2024)

FAQs

Why are my potatoes watery? ›

The potatoes might have been harvested in heat and started perspiring, just like a human might, as it is still a living organism. If trapped in a bag or box then the moisture can cause the potatoes to be wet or sealed up with no ventilation and could actually mold if left that way too long.

Why are my potatoes so watery? ›

Soil or dirt has a lot to do with the solids content of the harvested potato. Potatoes grown in clay or very dense soil have a tendency to not be able to get rid of the moisture versus potatoes grown in sandy soil or volcanic soil; which is what Idaho soil is.

How do you stop potatoes going watery? ›

There are a few ways you can help avoid this:
  1. Boiling the potatoes with the skins on reduces the amount of water absorbed (and adds some of the flavour from the skins).
  2. Get the starch of the individual cells to gel before fully cooking. ...
  3. Use baked potatoes.
Dec 28, 2012

How to fix runny potatoes? ›

You can use what you have on hand: Flour, cornstarch, or powdered milk are all solid options that are probably already in your pantry. Potato flour and potato starch would work as well. Stir in the thickening agent gradually, about a tablespoon at a time, until the potatoes have reached your desired consistency.

Are watery potatoes safe to eat? ›

As long as the potatoes are still mostly firm, they're fine to cook. Potatoes are 80 percent water, so softness is usually just a sign of dehydration. But if they're extremely mushy or shriveled, do not pass go.

How do you remove excess water from potatoes? ›

Try draining the cooked water off in a sieve or colander and then placing back on the stove to cook out some of the extra moisture, just a couple of minutes. Mash with a masher (or a ricer which makes great non lumpy spuds).

What happens if potatoes don't get enough water? ›

Neither, too wet and potatoes will get white spots and eventually start to rot. Too dry and they will start to grow different shapes or get stunted in growth. Eventually they will die with too little water. You are looking for a damp well drained soil.

How do you fix watery potato bake? ›

It isn't supposed to be watery.
  1. Try checking your oven temperature. ...
  2. Try using russets. ...
  3. Try letting the dish rest for 10 minutes or so to let the water get absorbed and let the sauce thicken.
  4. Try cooking your recipe longer.
  5. Try uncovering the dish in the oven for the last 10 minutes or so.
Feb 18, 2021

What makes potatoes soggy? ›

However, if moisture is trapped inside the skin, it can make the potato quite soggy. Piercing the skin of the potato before cooking creates escape routes for interior moisture. Potatoes that stand for long periods after baking also tend to be soggier than those served immediately.

Can you add potatoes to thicken? ›

You probably already know that potatoes are a great thickener for homemade soup. Even if you don't purée the soup with a blender, potatoes release starch as they cook — thickening the broth with a satisfying velvety consistency.

Why are my stored potatoes wet? ›

When the potato tubers are cut or skinned during harvest, pathogens can enter through the wounds. If storage conditions are favorable, these pathogens cause wet rots. Storage conditions also influence the spread of the wet rots through the storage area.

When should you not eat potatoes? ›

As they age, or with improper storage, potatoes may develop sprouting and green spots. If there isn't any sprouting, you can use the color change as an indicator of spoilage. If the skin looks greenish or if there's sprouting present, you'll need to remove the sprouts or toss the whole potato, depending on severity.

What are waterlogged potatoes? ›

One important thing to know about potatoes is that water is their enemy. Yep, it cooks the potatoes, but if they spend too long bathing, they'll become waterlogged. And no matter what type of potato you're boiling, waterlogged potatoes will be grainy, crumbly and mushy with little flavor (it'll leach into the water).

Why do potatoes turn to liquid? ›

Over time, the rot widens inside the tuber, gradually liquefying it. The bacteria can spread throughout the storage area in the ooze leaching from decaying tubers. Bacterial soft rot has little odor; usually any smell attached to an infection is due to a secondary infection by opportunistic organisms that attack later.

What happens if potatoes get too much water? ›

Signs of overwatering include yellow leaves and dieback – which can be challenging to recover from. Potatoes need 1-2 inches of water weekly from rainfall and irrigation. Take care not to over-saturate the ground, and use your finger to check the moisture levels around 6 inches deep.

What do underwatered potatoes look like? ›

Recognizing Under-Watered Potatoes

Wilting is your first red flag; it's the potato plant's silent scream for hydration. When the leaves droop, it's time to act. Dry soil is another giveaway.

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