How do You Buy Good Potatoes?
The best potatoes feel firm and heavy for their size, with smooth skin and no visible sprouts, soft spots, or green patches. Choosing the right type for your cooking method, from starchy Russets for baking to waxy reds for roasting, makes the difference between a meal that works and one that disappoints.
What Should You Look for When Buying Potatoes?
Start by checking the skin condition. A good potato has unbroken, tight skin without cracks, wrinkles, or bruises. Pass on any potato that feels spongy or has mushy areas, because that signals decay inside.
Eyes and sprouts matter too. Small shallow eyes are normal, but once a potato sprouts, it has started converting starch to sugar, which changes both texture and taste. Sprouted potatoes are safe to eat if you remove the sprouts thoroughly, but they won't cook as well as fresh ones.
Green patches are more serious. That green color means the potato was exposed to light and has produced solanine, a natural toxin that tastes bitter and can cause stomach upset in large amounts. If the green is only on a thin layer, you can cut it away generously. If the whole potato looks green, throw it out.
Weight is another clue. Pick up a few potatoes of similar size. The heavier one has more moisture and less air space inside, which usually means better texture and flavor. Light potatoes may have begun drying out or developing hollow centers.
Washing or not washing is a simple choice. Pre-washed potatoes are convenient but spoil faster because their natural protective layer is removed. Unwashed potatoes, still dusty from the field, last longer in your pantry.
How Do You Pick the Best Potato Type for Your Recipe?
Potatoes fall into three main categories based on starch content. Matching the potato to the cooking method transforms your dish.
Starchy Potatoes
Russet potatoes and Idaho potatoes are the classic starchy types. They have high starch and low moisture, so they bake up light and fluffy, mash smoothly, and make crispy french fries. They fall apart if boiled, so avoid them for soups or stews.
- Best for: baking, mashing, frying, roasting at high heat
- Look for: large, oval, with rough brown skin
- Common mistake: using Russets in a potato salad results in a mushy mess
Waxy Potatoes
Red potatoes, fingerlings, and new potatoes have low starch and high moisture. Their cells hold together well when cooked, so they keep their shape after boiling or roasting. The skin is thin and edible.
- Best for: potato salad, boiling, roasting in chunks, soups
- Look for: firm, smooth, often smaller than starchy types
- Common mistake: assuming red potatoes can replace Russets for baking leads to a dense, wet result
All-Purpose Potatoes
Yukon Gold and white potatoes fall in the middle. They have moderate starch and a buttery flavor that works in many dishes. Yukon Golds are especially popular for mashed potatoes because you need less butter and cream to get a creamy texture.
- Best for: mashing, roasting, frying, boiling, gratin
- Look for: thin skin, golden or pale flesh
- Common mistake: buying all-purpose potatoes for every recipe and never getting ideal results for any
| Potato Type | Starch Level | Best Cooking Method | Skin Texture |
|---|---|---|---|
| Russet / Idaho | High | Baking, mashing, frying | Rough, thick |
| Red / Fingerling | Low | Boiling, salad, roasting | Thin, smooth |
| Yukon Gold / White | Medium | All-purpose | Thin, tender |
What Are the Signs of a Bad Potato?
Even at the store, you can spot trouble before you buy.
- Soft spots or wrinkled skin mean the potato is losing moisture and may have started rotting
- A musty or moldy smell, especially around the stem end, indicates fungal decay
- Black spots or sunken patches on the surface often mean the potato was bruised in harvest or transport
- Large sprouts (more than half an inch) mean the potato has been stored too long in warm conditions
- Cuts or punctures in the skin let bacteria enter, causing rot that spreads to other potatoes in the bag
If you find one bad potato in a bag, remove it immediately when you get home. One rotten potato can release moisture and spores that spoil the whole batch.
Should You Buy Bagged or Loose Potatoes?
Loose potatoes give you the chance to inspect every single one. You can feel each potato, check for damage, and pick only the firmest, heaviest examples. This is the best choice when you need a small number of potatoes or want a specific type.
Bagged potatoes are usually cheaper per pound, but you cannot see the potatoes at the bottom of the bag. Bags also trap moisture, which speeds up decay. Some stores allow you to open the bag and peek inside. If you buy bags, choose ones with small ventilation holes and check that the bag feels dry, not damp.
The trade-off is simple: loose for quality control, bagged for budget. If you cook potatoes often and use them quickly, a bag is fine. If you need potatoes to last two weeks or more, buy loose.
How Should You Store Potatoes After Buying Them?
Good storage doubles the shelf life of your potatoes. Follow these numbered steps for best results.
Remove from plastic bags immediately. Plastic traps moisture and causes rot. Transfer potatoes to a breathable container like a paper sack, mesh bag, or a ventilated wooden crate. A potato storage bin with slatted sides works well.
Keep them in a cool, dark, dry place. Ideal temperature is between 45 and 50°F. A basement, cellar, or cool pantry is perfect. Do not store potatoes in the refrigerator on a regular basis, because cold temperatures turn starch into sugar, giving them an unwanted sweet taste and causing them to darken when cooked.
Keep them away from onions. Onions release gases that make potatoes sprout faster. Store them in separate bins or at opposite ends of the pantry.
Check them weekly. Remove any potato that shows sprouts, soft spots, or green patches before it can spoil its neighbors.
Do not wash until you are ready to use them. Moisture on the skin accelerates decay. If you wash potatoes before storing, dry them thoroughly first.
A dedicated vegetable storage system helps maintain proper airflow. Look for a mesh storage bag or a root cellar bin to keep potatoes at their best.
What Common Mistakes Do People Make When Buying Potatoes?
Many shoppers pick potatoes based on habit rather than quality. Here are the most frequent errors.
Mistake one: buying the same potato for every dish. A Russet baked potato turns out fluffy and light. A Russet potato salad turns into glue. Know what you are cooking before you choose the type.
Mistake two: ignoring the source. Potatoes from a farmer's market are often fresher than supermarket stock, with fewer days between harvest and sale. If you have access to local growers, the quality difference is noticeable.
Mistake three: buying too many at once. Potatoes keep for weeks under ideal conditions, but most homes do not have a perfect root cellar. Buy only what you will use in one to two weeks unless you have a cold, dark storage space.
Mistake four: squeezing potatoes roughly. Pressing too hard damages the cells under the skin, creating bruising that leads to early spoilage. Use gentle pressure to test firmness.
Mistake five: confusing new potatoes with small old potatoes. True new potatoes are harvested early in the season, have thin papery skin, and taste sweet and creamy. Small potatoes sold later in the year are often just undersized mature potatoes with tougher skin and starchier flesh. Ask your seller if the potatoes are actually new or just small.
A Simple Potato Buying Checklist for the Store
When you walk into the produce section, use this quick mental checklist to guarantee good potatoes.
- Decide your cooking method first, then pick the potato type
- Look for smooth, intact skin without cracks or green patches
- Feel for firmness with gentle pressure
- Check the weight by comparing similar sizes
- Avoid bags with moisture inside or signs of rot at the bottom
- Buy loose if you need fewer than five pounds or want to inspect each one
- Buy unwashed if you plan to store them longer than a week
- For new potatoes, ask the vendor whether they are truly early harvest
How do you buy good potatoes? The answer comes down to four simple actions: choose the right type for your recipe, inspect every potato for physical defects, buy only what you can use before they spoil, and store them in a cool dark place with good airflow. Master these steps, and your roasted potatoes will turn golden and crisp, your mashed potatoes will stay creamy, and your baked potatoes will fluff up perfectly every time. Start with a careful look at the bin, pick with purpose, and your cooking will thank you.