The Last Straw: A Reusable Straw You Can Actually Sanitize
Most reusable straws hide germs in the one place a brush can't reach. The Last Straw is made of quartz that's transparent to UV-C — so a UV-C sanitizer disinfects it inside and out, not just the surface.
- ✓Quartz lets UV-C pass through — sanitize the inside, where brushes never reach
- ✓12 inches long — fits any cup, tumbler, or bottle
- ✓Chemical-free: no microplastics, no metals, no aftertaste
- ✓Safe for hot & cold drinks — and dishwasher safe
- ✓5 reusable straws per pack — ditch single-use plastic for good
back guarantee
inside & out
free quartz
Reusable straws are germ traps.
A reusable straw saves plastic — but its long, narrow tube is the one spot a cleaning brush can't fully reach. Moisture sits in that dark, tight space, and microbes settle in where the bristles miss.
Researchers have pulled mold and E. coli out of regularly-used straws, even ones rinsed after every drink. Tossing it in the dishwasher helps the outside, but the inside is still a question mark.
See how germs build up →
The only straw built for UV-C light.
Ordinary glass and plastic block UV-C. The Last Straw is made from high-quality quartz, which is transparent to UV-C — so germicidal light passes straight through the wall of the straw. Drop it in a UV-C sanitizer and the light reaches every surface, inside and out, breaking down the bacteria a brush leaves behind.
No scrubbing the inside, no harsh chemicals — just light doing the work cleaning can't.
Learn how UV-C light works →Disinfection that reaches where brushes don't.
UV-C is the same germicidal light hospitals and water treatment plants use to disinfect. Because quartz is UV-C transparent, a UV-C sanitizer like HomeSoap treats the full length of the straw — the hidden inner tube included — in minutes, with no soap, water, or scrubbing.
UV-C sanitizing requires a UV-C device such as HomeSoap (sold here or as a bundle). The straw itself is a passive quartz tube; it does not emit UV-C.
See PhoneSoap testing results →The last straw you'll ever need.
Durable, versatile, and easy to keep sanitary — a premium reusable straw that replaces a lifetime of single-use plastic.
A smooth, authentic sip.
High-quality quartz with rounded edges gives a clean, glass-like sipping experience — and unlike metal, it never taints the taste of your drink.
One straw for every drink.
At 12 inches, it fits the most popular cups and tumblers. Use it for iced coffee or hot tea, and wash it on the top rack of your dishwasher.
No microplastics. No metals.
Unlike plastic or steel straws, quartz sheds no microplastics and leaches no metals. It's just pure, inert material between you and your drink.
One straw instead of hundreds.
Around 500 million plastic straws are used every day in the U.S., and most end up in landfills and oceans where they harm wildlife for centuries. The Last Straw replaces a steady stream of throwaway straws with one durable, reusable straw — a small switch with a big impact.
And because you can sanitize it properly, going reusable doesn't mean trading hygiene for sustainability.
Shop all UV water solutions →
Made to live in a HomeSoap.
Place The Last Straw inside HomeSoap, our large UV-C sanitizer, and germicidal light floods the chamber — passing through the quartz to disinfect the inside of the straw along with the outside. It's the easiest way to keep a reusable straw truly sanitary between uses.
HomeSoap is big enough for straws, bottles, phones, remotes, and more — the whole family's daily essentials.
Add HomeSoap to your order ↑
How to clean a reusable straw — inside and out.
The honest problem with reusable straws is the inside. Here's the routine that actually reaches it: sip, rinse or wash, then sanitize with UV-C.
Sip
Enjoy any drink, hot or cold, through the smooth quartz straw.
Rinse or wash
Give it a quick rinse, or run it through the dishwasher to handle the surface.
Sanitize in UV-C
Drop it in HomeSoap so UV-C light disinfects the inside and out — no scrubbing required.
⚠Quartz is a glass-like material — don't use it after it's been dropped on a hard floor, and not while driving.
💧UV-C sanitizing requires a UV-C device such as HomeSoap. Everyday washing keeps the surface clean; UV-C reaches the inside.
Specs.
Frequently asked questions
How do you clean and sanitize a reusable straw?
Scrubbing with a small brush and warm soapy water is how people usually disinfect reusable straws, sometimes tossing them in the dishwasher when safe. Yet tight inner spaces tend to trap gunk, leaving germs tucked where bristles fail to go. Inside those slim tubes, microbes stick around despite regular washing. A product called The Last Straw by PhoneSoap takes a different path - The Last Straw is built from Quartz which is transparent to UV-C light. Therefore, placing the straw in a UV-C sanitizer like HomeSoap kills germs on both the outside AND inside of the straw. Getting everything that regular cleaning misses. Hidden corners get treated without needing extra effort. That unseen radiation breaks down bacteria lurking deep within.
Are reusable straws actually sanitary?
Inside every reused straw that skips a wash lives a hidden world of germs waiting to grow. Moist warmth tucked into tight spaces gives microbes exactly what they need. Mold spores show up. So does E. coli. Research pulled these out from neglected tubes more than once. Further, when someone takes time each day scrubbing, germs have still been found. Generally speaking, reusable straws are not sanitary. However, The Last Straw with its ability to sanitize the inside of the straw removes any doubt. These straws then stand as quiet replacements for disposable ones without harm stacking up in landfills.
What makes a UV straw better than a regular reusable straw?
A glass-like tube moves liquid into your mouth with a feel that is smooth and satisfying to your lips. Light waves can also zap tiny invaders inside your straw after you sip. The straw on its own just carries flavor with a premium feel. The UV-C transparent material fights what you cannot see. Size looks similar. Purpose shifts completely. Old fashioned design is enhanced with new tech material that adds silent protection with every drink.
The Last Straw is made of UV-C transparent material allowing UV-C to pass through its shell and kill germs lurking deep within after drinking. Most refillable tubes demand scrubbing by hand, and even after that microbes are still left behind and thrive unseen. This version uses short bursts of radiant energy instead, wiping out unwanted guests without soap or water nearby. No faucet needed. Just press once. Disinfection happens while you move. Bacteria stand no chance when light does the work others miss.
Are reusable straws better for the environment than plastic straws?
Yes. One fact stands clear. Around five hundred million plastic straws are used daily across America, many tossed into trash sites or seas where they linger for centuries, damaging sea creatures along the way. Life underwater pays a price. Over time, just one durable straw takes the place of countless throwaway versions. Using a washable option equipped with ultraviolet sanitizing brings down pollution levels. The level of disinfection stays high, matching even the strictest measures found in disposable types.
Can kids use reusable UV straws safely?
Yes. Kids can safely use reusable straws. Because little ones tend to skip proper washing and pick up germs easily, having a sanitizing method helps reduce worry for caregivers. Light works hidden away during sanitation in an enclosed device like HomeSoap, meaning hands-on handling stays risk free at home. Peace comes easier when you know invisible threats get wiped out before sipping begins. The straw is made of glass-like material so it should not be used while driving or after being dropped on the floor.
More UV-C for everyday life.
HomeSoap
The large UV-C sanitizer that disinfects your straw inside & out — plus phones, bottles, and more.
Luma UV Water Bottle
A self-cleaning bottle that runs a 60-second UV-C cycle on your water and the bottle.
The last straw you'll ever buy.
Premium quartz, hot & cold safe, and the only reusable straw you can sanitize inside and out with UV-C.
Add to cart — $19.95