7 Products to Make Your Iced Coffee Obsession More Eco-Friendly

iStock/blackred
iStock/blackred

As you may have heard, plastic straws are on their way out. There is an increasing push to phase out hard-to-recycle single-use straws in restaurant chains and even entire cities, and many people are becoming aware for the first time of just how harmful straws can be to the environment. So what’s an iced coffee aficionado to do? While there are some alternatives in the works—a new paper straw factory recently opened in the UK, for one, and Starbucks is redesigning its plastic lids to include sippable lips—for now, finding alternatives to grabbing several plastic straws a day to support an addiction to cold brew, iced tea, and fountain sodas is largely up to consumers themselves.

If you’ve started feeling guilty about your two-a-day iced coffee habit or your love of an icy Coke, there are a number of options to replace all that single-use plastic you’re used to throwing away. Here are seven items that can make your cold beverage purchases a little more environmentally friendly. Let’s start with the straws themselves.

1. Compostable Straws; $8 for 100

A package of white compostable straws
Repurpose

Don’t want to give up the convenience of a classic plastic straw? Repurpose makes compostable straws out of plant matter that, unlike the conventional plastic options, will biodegrade. According to the company, they’ll break down after 180 days in an industrial composting facility. Amazon reviewers note that the straws look and feel almost exactly like plastic straws, so you don’t have to change your habits too much.

Buy it: Amazon

2. Stainless Steel Straws; $8 for 6

Two cleaning brushes, three straight stainless steel straws, and three bent straws with colored tips
Amazon

Stainless steel is durable, easy to clean, and affordable, making it the go-to option for many people looking to replace their plastic straws. However, metal straws can also feel harsh and cold. Luckily, each straw in this set has a soft silicone tip on the top for maximum mouth comfort. This pack of six comes with both straight and bent straws of different diameters, meaning they’ll work for thick smoothies as well as for coffee or soda. They’re also slightly longer than regular straws, so they’ll fit tall tumblers.

Buy it: Amazon

3. Glass Straws; $11 for 2

Two purple straws fit inside a blue carrying case.
Amazon

Glass straws are smooth to sip from, especially if you’re a person who doesn’t love the metallic taste of stainless steel straws. While they look delicate, they’re sturdier than you think, and can survive banging around in your bag all day or getting thrown in the sink. (They’re made from the same type of shatterproof glass as old-school Pyrex dishware.) While these colorful straws aren’t the cheapest glass versions available on the web, they come with a crucial component that not all manufacturers offer—a carrying case to keep your straws clean and safe throughout the day.

Buy it: Amazon

4. Straw Carrying Case; $14

A teal straw bag with illustrations of French bulldogs and catcuses
Shaunacy Ferro, Mental Floss

Not all reusable straws come with a case, but having one will improve the likelihood that you'll commit to ditching plastic straws. Instead of planning every coffee, soda, or smoothie you’ll buy, it's easiest to always have one of your reusable straws waiting in your bag. These colorful pouches from Hawaii-based Etsy seller Bernadette Rapozo come in a variety of patterns and feature a waterproof lining so that you don’t have to worry about throwing your still-slightly-wet straw in it after you finish your drink.

Buy it: Etsy

5. Hydro Flask 32-Ounce Tumbler and Straw Lid; $50 for Both

A black tumblr and a lid with a straw in it
Hydro Flask

If you’ve already committed to trying to reduce your straw usage, you may also find yourself feeling guilty about using plastic cups. This well-insulated stainless steel cup from Hydro Flask promises to fit in most cupholders and has a non-slip powder finish on the exterior for easy gripping, two design factors that led to it being named The Wirecutter’s favorite tumbler. The double-wall structure is made to keep your drink cold for a full 24 hours.

Hydro Flask recently debuted a splash-proof straw lid, sold separately, that makes the tumbler feel more like a traditional disposable plastic cup. The tumblers come in various sizes, including a 10-ounce version designed for wine and liquor—or, alternately, juice and small amounts of coffee—and a 22-ounce and 32-ounce version for larger drinks. For iced coffee, we prefer the 32-ounce version, because that gives you tons of room for extra ice. It comes in 12 colors and is covered by a lifetime guarantee.

Buy it: Tumbler, Lid on Hydro Flask; Tumbler, Lid on Amazon

6. Tervis Insulated 16-Ounce Tumbler and Lid; $16 for Both

A clear plastic tumbler and black lid that reads 'Tervis'
Tervis, Amazon

Tervis makes simple, affordable plastic tumblers that come in a wide variety of designs and colors. (You may recognize them from college bookstores, since they’re available with a number of university’s emblems on them.) They’re especially handy if you’re looking to pair them with your own straw, since the large, puncture-style hole can fit almost any size straw.

Buy it: on Amazon: Tumbler, Lid

7. Simple Modern 16-Ounce Tumbler With Lid; $18

A dark gray tumbler with a black straw
Simple Modern

If you want something similar in design to a single-use plastic cafe cup but are looking for something more durable than most reusable plastic tumblers, Simple Modern’s 16-ounce stainless steel travel tumblers might be the right fit. While more affordable than Hydro Flask’s version, these tumblers also feature stainless steel insulated walls designed to keep your drink icy for hours. Each one also comes with two lids: a straw lid for cold drinks and a sippable lid for hot beverages.

Buy it: Amazon

A version of this article first ran in 2018. It has been updated to reflect current availability as of July 2019.

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!

The Great Tryptophan Lie: Eating Turkey Does Not Make You Tired

H. Armstrong Roberts/iStock via Getty Images
H. Armstrong Roberts/iStock via Getty Images

While you’re battling your cousins for the best napping spot after Thanksgiving dinner, feel free to use this as a diversion tactic: It’s a myth that eating turkey makes you tired.

It’s true that turkey contains L-Tryptophan, an amino acid involved in sleep. Your body uses it to produce a B vitamin called niacin, which generates the neurotransmitter serotonin, which yields the hormone melatonin, which helps regulate your sleeping patterns. However, plenty of other common foods contain comparable levels of tryptophan, including other poultry, meat, cheese, yogurt, fish, and eggs.

Furthermore, in order for tryptophan to produce serotonin in your brain, it first has to make it across the blood-brain barrier, which many other amino acids are also trying to do. To give tryptophan a leg up in the competition, it needs the help of carbohydrates. Registered dietitian Elizabeth Somer tells WebMD that the best way to boost serotonin is to eat a small, all-carbohydrate snack a little while after you’ve eaten something that contains tryptophan, and the carbs will help ferry the tryptophan from your bloodstream to your brain.

But Thanksgiving isn’t exactly about eating small, well-timed snacks. It’s more about heaps of potatoes, mountains of stuffing, and generous globs of gravy—and that, along with alcohol, is more likely the reason you collapse into a spectacular food coma after your meal. Overeating (especially of foods high in fat) means your body has to work extra hard to digest everything. To get the job done, it redirects blood to the digestive system, leaving little energy for anything else. And since alcohol is a central nervous system depressant, it also slows down your brain and other organs.

In short, you can still hold turkey responsible for your Thanksgiving exhaustion, but you should make sure it knows it can share the blame with the homestyle mac and cheese, spiked apple cider, and second piece of pumpkin pie.

[h/t WebMD]

How Mammoth Poop Gave Us Pumpkin Pie

MargoeEdwards/iStock via Getty Images
MargoeEdwards/iStock via Getty Images

When it’s time to express gratitude for the many privileges bestowed upon your family this Thanksgiving, don’t forget to be grateful for mammoth poop. The excrement of this long-extinct species is a big reason why holiday desserts taste so good.

Why? Because, as Smithsonian Insider reports, tens of thousands of years ago, mammoths, elephants, and mastodons had an affinity for wild gourds, the ancestors of squashes and pumpkin. In a 2015 study published in the Proceedings of the National Academy of Sciences, a Smithsonian researcher and colleagues found that wild gourds—which were much smaller than our modern-day butternuts—carried a bitter-tasting toxin in their flesh that acted as a deterrent to some animals. While small rodents would avoid eating the gourds, the huge mammals would not. Their taste buds wouldn't pick up the bitter flavor and the toxin had no effect on them. Mammoths would eat the gourds and pass the indigestible seeds out in their feces. The seeds would then be plopped into whatever habitat range the mammoth was roaming in, complete with fertilizer.

When the mammoths went extinct as recently as 4000 years ago, the gourds faced the same fate—until humans began to domesticate the plants, allowing for the rise of pumpkins. But had it not been for the dispersal of the seeds via mammoth crap, the gourd might not have survived long enough to arrive at our dinner tables.

So as you dig into your pumpkin pie this year, be sure to think of the heaping piles of dung that made the delicious treat possible.

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