Monday, July 22, 2019

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What Is the Difference Between Pickling and Fermenting?

What is the difference between pickling and fermenting?

With the rise of kimchi, kombucha, DIY fermentation, homemade pickles, and everything probiotic, you may have wondered: What is the difference between pickling and fermenting? They do share similarities, but microbes, time, and taste are some of the key differences between pickled and fermented foods.

One of my favorite memories of my niece as a toddler is of her jamming her teeny fingers into a jar of Rick’s Picks Smokra, lifting a piece to her mouth, tasting it with the tip of her tongue, and quickly putting it down with a look of surprise and dismay. She then waddled away, came back a moment later, and did it again—same move, same reaction. It might have gone on like this until the whole jar was empty if we hadn’t finally moved it out of her reach, crying with laughter.

That sour tang, which offended my niece’s delicate kiddie palate years ago, is something I often crave. Crunchy, salty, spicy, smoky, or sweet, I’ll take a pickle over any condiment, and can even make a meal of it (I’ve eaten an entire jar of pickled beets or kimchi for dinner on more than one occasion).

But until I started making my own, I didn’t fully comprehend how pickled and fermented foods differed; the two are often confused. So, we went straight to the experts to learn the difference between pickling and fermenting.

With or Without Microbes

The first thing you need to know is that, while some fermented foods can be considered pickles, not all pickles are created through fermentation.

“Pickling often refers to a quick [preservation] process using sugar, aromatics, and vinegar,” explains Michael Makuch, Associate Professor and Director of the Ecolab Center for Culinary Science at Johnson & Wales University. Fermentation, however, is an anaerobic process that occurs naturally when microbes break down sugars in food, resulting in the production of lactic acid. “There’s a lot of confusion,” Makuch concedes. “Fermented foods may end up pickled, but pickles aren’t necessarily fermented. As soon as you heat-treat a pickle, you kill the microbes.” And without those industrious little organisms, fermentation won’t occur.

”To pickle is to preserve with acid,” says Linda Ziedrich, author of “The Joy of Pickling: 300 Flavor-Packed Recipes for All Kinds of Produce from Garden or Market.” “The acid usually comes from vinegar as acetic acid or from lactic-acid fermentation. So, fermented vegetables are pickles. But fermentation can involve various organisms and acids. Bread, beer, wine, soy sauce, miso, tempeh, yogurt, cheese, and kefir are all fermented foods, but we don’t call them pickles.”

Sandor Katz, author of “The Art of Fermentation: An In-Depth Exploration of Essential Concepts and Processes from Around the World,” agrees. “I would define a pickle as anything that is preserved in an acidic medium, whether it be a cucumber, a hard boiled egg, pig’s feet, or beets. Virtually anything can be preserved this way. Most of what you find on supermarket shelves in 2019 are vinegar pickles, and have had a hot solution poured over them.”

People have been fermenting food for thousands of years, but vinegar pickles really only became popular when distilled white vinegar became commercially widespread in the mid-20th century, says Katz. “It’s generally assumed alcohol is the oldest form of fermentation,” he explains. He uses fruit ripened past its prime as an example, because its sugars have spontaneously fermented into alcohol. “Insects, birds, and animals, including primates, are drawn to the smell and flavor. The phenomenon is natural, and part of our deep evolutionary past.”

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We Want the Funk

In addition to whether or not bacteria play a role in the process, there are important differences between pickling and fermentation. Flavor is perhaps the most important. “Pickling gives you top notes from the brine, but not the complexity you get from fermented food products,” says Makuch. “Microbes provide complex flavor compounds. There’s a signature sour note you get in yogurt, or sourdough bread, and you may also get a bit of an earthy note, like in kimchi, which has an earthy funk in back notes. It can turn some people off if they’re not used to it. Or they may start to crave it, depending on their flavor palate.”

Texture & Time

Ziedrich points out that texture is also key. Take cucumber pickles, which you can make either by pickling or fermenting. “If you let the fermentation run its full course for two weeks or longer,” she says, “the cucumbers will soften somewhat. Although many people prefer ‘full sour’ pickles, others like their vegetables only partially fermented and still crisp.”

Most cucumber pickles you find on grocery store shelves have either been heated before being put in the jar or packed cold and then heat-processed. “Heat softens cucumbers, peppers, and some other vegetables, too,” Ziedrick warns. “To keep cucumber pickles from softening too much, you can use the low-temperature method of pasteurization: keep the jars immersed in a bath of water heated to 180 to 185 degrees Fahrenheit for 30 minutes. Better still, don’t heat the jars at all and store them in the refrigerator instead.”

If time is of the essence, then pickling is the best way to go. “You can make a quick pickle in 30 seconds with a chamber vacuum sealer,” says Makuch. Even without the fancy equipment, you can easily whip up a batch of quick refrigerator pickles in just hours. By contrast, fermentation can take days, even weeks, to yield desired results, and you have to babysit it to ensure the food is submerged beneath the brine to prevent spoilage.

Read More: Creative Ways to Use Leftover Pickle Brine

It’s Alive!

homemade kombucha recipe and tips

Unsplash

If you’re buying pre-packaged foods, you’ll also notice a difference in price and convenience. “If you pre-package [fermented food],” explains Katz, “it’s alive and producing pressure and must be refrigerated. By definition, it’s less shelf stable and more expensive.” However, he explains, in addition to having a superior flavor, fermented foods have much more to offer us nutritionally. Vegetables are an important source of vitamin C, but heat-processing diminishes nutrients. Fermented foods are also chock-full of probiotics, those good bacteria that help diversify the flora in our gut, which can potentially improve digestion, immune function, and even mental health. “It’s a trade-off between nutritional quality and shelf stability and convenience,” Katz concludes.

Read More: How to Make Homemade Kombucha

If you’re deciding between pickling and fermenting, Makuch recommends thinking about your end goal. “I think they both have their place,” he says, “but pickling is more limited in what you’re able to achieve.” Ziedrich recommends experimenting with a few recipes to figure out what appeals to you. Beyond the ubiquitous cucumber pickle, you can make anything from pickled onions or watermelon rind to fermented tomato salsa or brined cherries.

And if, like my niece and me, you can’t keep your hand out of the jar, you may just end up making a meal out of the mouthwatering results.



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These Frozen Yogurt Toppings Give the Most Bang for Your Buck

best frozen yogurt toppings for your money

It’s 3:20 p.m. on a Thursday, and by the looks of things school has definitely not started up again. Kids breeze past, eagerly demanding sample cups from a t-shirted employee. They race down 30-foot long counters of pure bliss, eyes wide open, cups half full. Large windows of sunlight, bare white walls, and blasting Top 40 music make this feel like the land of endless summer.

Welcome to Toppings, Pacific Palisades, a SoCal staple with so many toppings that budgeting can be a surprising challenge.

“I wanted it to look like a nice restaurant, not a yogurt shop,” says the owner Jordin Mendelshon. He’s a former ad executive who, in order to cut through in the crowded froyo space, designed a concept more akin to “retail.” And there are certainly chic Costco vibes in here.

Related Reading: Savory Ice Cream Topping Ideas to Spice Up Your Summer

On this day, customers can sprinkle 126 toppings across 21 different flavors of frozen yogurt. Entering the room gives you a God-like feeling of power. There are over 3.7 million combinations you can make. I saw Tyra Banks here once.

“Stop doing that right now!” a mother commands as her son fishes for another scoop of root beer-flavored gummies. “It’s disgusting and will weigh too much.” He stops. He returns a minute later. Across the aisle, another mom says, “that’s good,” as she watches her son go for candy corn. A 20-something man reaches for mango, and then retreats, shaking his head like he just saw his life flash before his eyes.

One underlying question is shared by all: Which topping will tip the scale too far?

I weighed a bunch of them to figure out. The results are a bit obvious but can help you to stay in “working range.” There’s nothing worse than being surprised by an $8.00 charge you thought would be under $5.00, only because you added a half bar of Hershey’s Cookies and Cream.

Related Reading: How to Build the Ultimate Ice Cream Sundae Bar

The Investigation

I weighed “scoops” of 21 common toppings. The measurements aren’t perfect by any means—but froyo, like life, is a balancing act.

  • Cherries: 2.2 oz/scoop
  • Boba: 2.0 oz/scoop
  • Cookie Dough: 1.8 oz/scoop
  • Strawberries: 1.6 oz/scoop
  • Reese’s: 1.6 oz/scoop
  • Gummy Bears: 1.6 oz/scoop
  • Jelly Beans: 1.6 oz/scoop
  • Yogurt Chips: 1.4 oz/scoop
  • Candy Corn: 1.4 oz/scoop
  • Skittles: 1.4 oz/scoop
  • Swedish Fish: 1.4 oz/scoop
  • Peanuts: 1.2 oz/scoop
  • Cheesecake: 1 oz/scoop
  • Oreo Shavings: 1 oz/scoop
  • Graham Cracker: 1 oz/scoop
  • Walnuts: 1 oz/scoop
  • Chocolate Cake: 0.8 oz/scoop
  • Almonds: 0.8 oz/scoop
  • Smashed Peanuts: 0.8 oz/scoop
  • Coconut: 0.6 oz/scoop
  • Fruit Loops: 0.6 oz/scoop
  • Marshmallows: 0.4 oz/scoop

The Light Winners

Cereals

Through this experiment I was reminded that cereal is basically just cotton candy—whipped, sugary air. Fruit Loops, Lucky Charms marshmallows, and Frosted Flakes all fall under 0.6 oz./scoop.

Coconut Shavings

The Library of Congress says coconuts (like olives) are drupes—not a traditional fruit. Maybe that’s why their shaved meat doesn’t weigh as much as those of other fruits.

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Chocolate Cake

When I told my sister about this experiment, she was quick to admonish cakes. Turns out, they can be a bit airy, chalking up at only 0.8 oz./scoop. Take that, sister!

Chopped Peanuts

If you want to save, look to the chopped peanuts (0.8 oz./ scoop) before a Reese’s (1.6 oz. /scoop). And if you’re really cutting corners, avoid full peanuts, which add 0.4 oz./scoop compared to the chopped variety.

Heavy Losers

Cookie Dough

One of the most popular toppings is also one of the heaviest at 1.8 oz./ scoop. Makes sense—those little nuggets have to expand into cookies!

Cherries

Most everyone agrees strawberries are bad for the froyo budget (which they are), but rarely balk at cherries, which are 0.6 oz./scoop heavier.

Boba

Boba holds almost no nutritional value, which is a tough sell for something that also weighs 2 oz./scoop.

Gummy Bears

Alas, the squishy little guys pack a big punch at 1.6 oz./scoop.

Healthy Honorable Mentions

Almonds

Their thin cut lightens the scale without sacrificing flavor. If you want to tighten the budget, be like Obama (rumored lover of almonds) and go for some almonds.

Crushed Graham Cracker

There are 4-7 grams of sugar in a graham cracker serving, compared to 14 grams in a single Oreo. Make your surface area worth it.

Blueberries

Consider pairing your crushed graham cracker with some blueberries and make a light, froyo blueberry pie.

Inspired Toppings to Suggest to Your Froyo Shop

frozen yogurt toppings

Ryan Hynes

Apple Pie

Mendelshon’s favorite concoction is Apple Pie over vanilla yogurt. And yes, that’s just two desserts combined.

Potato Chips

A tribute to The Tonight Dough ice cream from Ben & Jerry’s.

Every Chocolate Bar Imaginable

Know the difference between Mars and Milky Way? Who cares! Get them both. (In the U.S., Mars has almond and Milky Way has caramel).

Pop Tarts

Untoasted, of course!

Peanut Butter Pretzels

Consider it an extra snack for your snack.

Or course, the cardinal rule of frozen yogurt is not to make too big of a deal out of it, so take these recommendations with a grain of salt(ed pretzel). When I asked Mendelshon if he weighs each and every ingredient to keep inventory, he replied simply, “As they run out, we buy more. Easy.”

It’s just froyo.

Lastly, to the girl who I saw sneak a circus animal cookie as you walked out, and then made a “shh!” gesture at me: We’re all proud of you.

Related Video: A Short History of Frozen Desserts in America



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