The Beer Bottle Cooler That Stays Cold
From First Sip To Last.
Beer warms up minutes after leaving the fridge. COLD1™ is a reusable beer chiller that uses phase-change cooling to keep your bottle ice-cold for 60+ minutes — no batteries, no ice, no dilution.
The COLD1™ Commercial
Warm Beer Ruins Great Moments
The first sip is glorious. The last one shouldn't be a compromise. See what happens 30 minutes after you crack one open.
Standard Bottle
With COLD1™
COLD1™Built Like A Piece Of Hardware
COLD1™ absorbs heat before your beer can. The result is a colder drinking experience without changing the taste or diluting the beverage.
Freeze. Clip. Enjoy.
Three steps. Zero hassle. The simplest piece of hardware you'll ever own.
Freeze
Place COLD1™ in your freezer for 3–4 hours. No batteries. No ice. No mess.
Clip
Attach it to almost any standard beer bottle. The universal lock snaps into place.
Enjoy
Enjoy colder beer for significantly longer — from first sip to last.
The Science Behind Every Cold Sip
Beer starts warming up the moment it leaves the fridge. COLD1™ was engineered to slow that process using the same thermal principles found in medical cold-chain logistics and temperature-controlled packaging.
The moment your beer leaves the fridge, heat starts attacking it from every direction.
The First Sip Is Glorious.
The Last One Shouldn't Be A Compromise.
Heat hits your bottle from every direction the second it leaves the fridge. The result: the last half of your beer is often significantly warmer than the first.
Heat Always Flows From Hotter To Colder.
The outside world sits at 25–40°C. Your beer is 4–6°C. Nature constantly tries to equalize that gap — and that's exactly why cold beer gets warm.
Meet The Thermal Shield
Instead of letting heat reach the bottle directly, COLD1™ intercepts it first — absorbing it into a phase-change cooling core.
- Outer Protective Shell
- Phase Change Cooling Core
- Thermal Transfer Layer
- Beer Bottle
The COLD1™ cooling core absorbs large amounts of heat energy while maintaining a stable temperature — slowing the warming of your beer.
Placed Where Heat Matters Most
Most heat enters through hand contact, ambient air and the exposed upper surface. COLD1™ wraps the top third of the bottle to intercept heat before it reaches the liquid you're about to drink.
The Thermal Shield Effect
Temperature rise over 45 minutes — same bottle, same room.
Engineered For The Last Sip
Most cooling products focus on chilling your drink. COLD1™ focuses on preserving it — slowing heat transfer and absorbing incoming thermal energy from first sip to last.
COLD1™ — STAY COLD. DRINK BOLD.
Built For Every Cold One.
From beaches to backyards, COLD1™ goes wherever the bottles do.
Why COLD1™ Beats Every Other Option
We looked at every way people try to keep a beer cold — koozies, chiller sticks, ice buckets, frozen mugs, even cans of ice. None of them solve the actual problem. Here's how COLD1™ compares.
Yes· Partial· No
Beats foam koozies on physics
A neoprene koozie only insulates — it slows heat transfer but adds zero cooling. COLD1™ actively absorbs heat through its phase-change core, keeping beer measurably colder for longer.
Beats in-bottle chiller sticks on hygiene
Chillsner-style chillers go inside your bottle, take up beer volume, and need careful cleaning. COLD1™ stays on the outside — dishwasher-safe and never touches your drink.
Beats ice buckets on portability
Buckets are messy, heavy, and stuck at the table. COLD1™ clips on, comes with you, and works at the BBQ, the beach, the box, or the boat.
Beats frozen mugs on taste
Pouring beer into a frosted glass kills head retention and ruins aroma. COLD1™ lets you drink straight from the bottle the way the brewer intended.
Beats ice on dilution
Ice in your drink is a compromise. COLD1™ delivers cold without a single drop of water touching your beer.
Designed like a product, not a gimmick
Soft-touch silicone, brushed aluminum thermal layer, universal locking fit. Built to live in your fridge and look good doing it.
Questions, Answered
COLD1™ is engineered to fit 95% of standard beer bottles, including most popular Indian and international brands. The universal locking mechanism flexes to grip a range of necks securely.
Be First To Chill Smarter.
Reserve your spot in under 30 seconds. Founding member pricing, a limited Arctic Black colorway, and priority shipping — only for the first 500.