What's Up With Those Green Potato Chips You Sometimes Find?

iStock/milla1974
iStock/milla1974

??Well, they're not dyed for St. Patrick’s Day. These are just from potatoes in which chlorophyll had started to form. This can happen when potatoes, which grow underground, are exposed to too much light in the field or factory, in storage, on the store shelf, or in your home.

The USDA’s “Standards for Grades of Potatoes” consider a potato that’s more than 5 percent green to be damaged, and potato lots that contain them will be graded below US Grade #1. That means most green potatoes never even make it to market.

You’ll still see some every now and again, either in whole or chip form, if conditions in the potato chip plant, the grocery store, or your kitchen are right. Fluorescent lighting and a room temperature of at least 68°F can get the greening process going in a raw potato in just three to five days, and some varieties of potato will start turning in as little as 12 hours even under low incandescent lighting.

By itself, chlorophyll is nothing to be worried about; it’s tasteless and nontoxic. In the process of a potato going green, though, conditions are also right for it to synthesize more of a glycoalkaloid (alkaloid + sugar) poison called solanine, which potato plants produce in their leaves, stems, sprouts and flesh as a defense against insects and other predators. Ingesting solanine can cause nausea, diarrhea, vomiting, stomach cramps, burning sensations in the throat, dysrhythmia, headaches, fever, hallucinations, jaundice, paralysis and death. Toxic levels for people are around one one-hundredth of an ounce for a 200-pound person, who would have to eat about 20 pounds of normal whole potatoes in one day to get sick. With very green potatoes, where the solanine level can increase ten-fold, only two pounds of spuds could leave you ill.

As for potato chips, solanine formation is localized near the potato's skin, usually no deeper than 3 mm. As they're peeled for processing, most of the flesh making up those three millimeters is typically removed. Whatever flecks of green are left are not going to be enough to do anything to you. So, go ahead - finish the whole bag if you want.

What About Dark Brown Potato Chips?

A different matter altogether. Brown potato chips are the result of potatoes being stored too long at low temperatures and accumulating excess sugar. When a potato chip is baked or fried, the sugar reacts with amino acids to produce that beautiful golden-brown color, but too much sugar leads to a very dark brown, almost burnt-looking, color and a slightly different, off flavor.

Keep Your Kitchen Clean With This Spoon Rest That Clips Straight Onto Your Pot

Amazon
Amazon

No matter how clean you keep things between meals, your organized, tidy kitchen can easily turn to chaos when it's time to start cooking. You can take steps to mitigate this, like setting up a mise en place and cleaning as you go, but some messy kitchen habits are hard to avoid. One of them is resting a dirty spoon on the counter while making stews, sauces, or anything else that requires lots of tasting and stirring as it cooks on the stove. If wiping off your spoon after each dip is an unrealistic goal, there's another way to stay neat.

The Trudeau flex pot clip, currently available on Amazon, is a spoon rest that keeps utensils raised off clean surfaces. It's made from tough stainless steel and silicone that stays cool to the touch even when attached to a pot of boiling water. The opening is big enough to hold bulky cooking tools like wooden spoons, tongs, and pasta forks. There's also a small divot for securing smaller items, like regular silverware.

Spoon in a spoon rest attached to pot.
Amazon

Strong enough to withstand temperatures of up to 482°F, the pot clip is a great tool for stovetop cooking. But even if you're not cooking with fire, the accessory can help you maintain a clean kitchen. Clip it to the side of your bowl before mixing cookie dough, or use it as a spot to hold the ladle for your punch bowl. And when you're no longer using it, you can toss it in the dishwasher for easy clean-up.

You can purchase a Trudeau flex pot clip for $8 on Amazon. If you're looking for more tools to round out your kitchen inventory, here are some affordable basics to consider.

Mental Floss has affiliate relationships with certain retailers and may receive a small percentage of any sale. But we choose all products independently and only get commission on items you buy and don't return, so we're only happy if you're happy. Thanks for helping us pay the bills!

10 Frank Facts About Hot Dogs

StephanieFrey/iStock via Getty Images
StephanieFrey/iStock via Getty Images

Americans love a good hot dog—so much so that, according to the National Hot Dog and Sausage Council, we consume about 20 billion of them a year, which works out to about 70 hot dogs per person. In celebration of National Hot Dog Month (July) and National Hot Dog Day (July 17), here are some facts about franks to enjoy during your own summer barbecues.

1. Hot dogs have a surprisingly contentious origin.

Sausages have a history that stretches back to at least the time of Homer’s Odyssey, but the origin of the hot dog is just as tricky to pin down. There are multiple claimants to the invention of the hot dog, each with a slightly different innovation. Was the hot dog invented by the first person to shorten the name of German dachshund sausages to “hot dogs,” or the first person to put a sausage in a bread roll, or the first person to create a dedicated bun for holding a sausage? All of these creators have laid claim to the title of Hot Dog Inventor, but none have been conclusively verified.

2. Hot dogs might be sandwiches.

Hot dogs are tricky to define in another way as well, and both the general public and official organizations seem to have very strong opinions on whether hot dogs fall into the category of sandwiches or not. The National Hot Dog and Sausage Council says hot dogs are their own entities, but Merriam-Webster supports calling a hot dog a sandwich, based on the fact that it is just a piece of split bread with a filling.

3. Los Angelenos consume the most hot dogs per year.


iStock

While you might expect Midwestern grill-masters to buy up the most hot dogs, the actual top consumers are Los Angelenos, who purchase 34 million pounds of franks a year. And Californians also top the per capita rankings: as of 2010, San Francisco consumed the most hot dogs per person per year.

4. Regional hot dog styles add a serious punch to the basic dog.

Chicago is famous for dogs with onion, relish, pepper, pickle, tomato, mustard, and celery salt, but Coney Island-style hot dogs with chili, cheese, mustard, and onions are popular in their eponymous region and in Michigan. The South prefers slaw and chili on its hot dogs, while wrapping them in bacon and deep frying are popular in other regions.

5. Japan has invented some colorful hot dogs.

The Japanese also love their original hot dog varieties, and black hot dogs took over the Tokyo market in 2013. The bun and sausage are dyed with black charcoal ash, which apparently makes no difference to the flavor.

6. Hot dogs and baseball have a long history.

Sausages have been served at baseball games since at least the 1890s. One story says that they were first served at the ballpark by the German who owned the St. Louis Browns, while another story claims an ice cream vendor decided to switch his product on a particularly cold day at the ballpark. Either way, they're still going strong after more than 120 years.

7. Hot dogs are the headliners at America's most famous eating competition.


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While legend has it that the first hot dog eating contest was held in 1916 to settle a casual bet—over who was the most patriotic, no less—the first recorded contest was in 1972. In that event, the winner ate 14 hot dogs in 12 minutes. In 2018, competitive eating legend—and now 12-time Nathan's champion Joey Chestnut—set a new event record, polishing off 74 hot dogs (and buns) in 10 minutes.

8. Hot dogs have been fed to royalty.

In 1939, the King and Queen of Great Britain visited Franklin and Eleanor Roosevelt in Hyde Park, New York. In true American spirit, the First Lady made sure to serve hot dogs during a picnic at their Hudson River property. Apparently, King George VI enjoyed them so much that he asked for seconds.

9. Hot dogs made Clara Bow famous.

To drum up business, the newly minted Nathan’s Famous hot dog restaurant at Coney Island hired a pretty redhead to serve its customers. Soon after, she was discovered by a vacationing talent scout, and became internationally famous as the silent film era's "It Girl," Clara Bow.

10. There is official hot dog etiquette.

The National Hot Dog and Sausage Council put out this video on the correct way to eat a hot dog. The whole video is worth a watch, but some highlights include: no ketchup if you're over the age of 18, no wine pairings, no utensils, and it should only take five bites to consume the entire hot dog (though you can take seven bites for a footlong). It might not be proper Emily Post material, but how can you argue with the "Queen of Wien"?

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