Frosty Core | What's in Your Bottle? Stay Frosty My Friends

Keep It Cold.

Never Water It Down.

Frosty Core® is a reusable frozen cooling core designed to fit inside your wide-mouth bottles and tumblers, including Stanley, Owala, Yeti, Hydroflask and other popular brands—keeping your drink cold without melting ice diluting every refill.

Freeze it. Drop it in. Enjoy.

Frosty Core® goes inside your bottle and takes up less room than ice so that means more beverage for you!

(Bottle or tumbler not included)

Frosty Core is made with 100% food safe materials & BPA free plastic just like your milk jug, OJ bottle, soda bottle, and other food-safe storage containers like those made by Rubbermaid and other brands.

Click the links below to discover more about Frosty Core®, how it works, who needs it, where to use it, and more

Classified: The Smuggler by Frosty Core Jump to How It Works, Why You Need It, What Comes with It. Jump to Kickstarter Pricing and Early Bird Discounts

What Exactly is Frosty Core®?

Meet the Cooling Core Made for Your Bottle

Frosty Core® isn't a bottle and it isn't a handful of reusable ice cubes.

It's a sealed, reusable, frozen cooling core made specifically to sit inside compatible wide-mouth bottles and tumblers.

Freeze it overnight, place it inside your bottle, add your drink and let Frosty Core cool from the inside—without melting into your beverage.

QUICK FACTS

Approx. 1.85" diameter
Approx. 3" tall
Designed for openings approximately 2" or larger
Reusable again and again

(It's smaller than it looks in photography. That means more beverage in your bottle!)

Wait. There's a second product in every kit? Yep. The Smuggler™ is also included. Find out more about the Smuggler™.

HOW IT WORKS

Cold Drinks Made Simple

1. FREEZE IT

Place Frosty Core in your freezer until completely frozen.

2. DROP IT IN

Place it inside your compatible wide-mouth bottle or tumbler.

3. FILL & GO

Add your beverage and drink normally using the integrated straw channel or your preferred lid setup. And Frosty Core takes up less room than the ice you normally use so more drink for you!

4. RE-FREEZE & REUSE

Rinse it, freeze it again, and keep using it.

Freeze It. Drop It In. Enjoy.

WHY DO I NEED IT IF MY BOTTLE IS INSULATED?

Insulation Holds Temperature.

Frosty Core® Adds Cooling.

A good insulated bottle is great at keeping an already-cold beverage cold - for awhile.

But what happens when:

You refill with warmer water?

You buy a drink after airport security?

(Frosty Core® is TSA friendly and can be carried frozen through security to be used on the flight and in that hotel with no in-room ice-maker so you don't have to use the sketchy ice bucket and ice machine down the hall)

Your hotel room has no ice maker?

Your dorm room fridge has no icemaker?

You're traveling in an RV with no icemaker?

You have guests in town and your ice maker can't keep up?

You're out riding, hiking, golfing or working all day?

You simply don't want melting ice diluting your drink?

That's where Frosty Core® comes in.

INSULATED BOTTLE

Helps retain the temperature of the beverage you put inside.

FROSTY CORE®

Provides a frozen cooling source inside the beverage extending the time the beverage stays cold, and helps cool refills.

BEST OF BOTH

Use Frosty Core inside an insulated bottle and let the bottle help retain the temperature Frosty Core creates.

INSULATION = RETAINS COLD

FROSTY CORE = ADDS COOLING

TOGETHER = A BETTER COOLING SYSTEM

WHY NOT JUST USE ICE OR REUSABLE ICE STICKS?

Frosty Core® Was Designed Specifically for Bottles & Tumblers

We're Giving Away Some Great Stuff. 5 Lucky Winners will Take Home Over $200 in Frosty Core® Gear. Click Here to Enter

REAL-WORLD PERFORMANCE

We Tested It. Here's What Happened.

Performance Test

48 oz insulated tumbler
40 oz water

Room Temp 75°F
Starting beverage temperature: approximately 55°F

USING ONE FROSTY CORE

(We recommend using 2 for this size bottle but wanted to see the performance)

Cooled to approximately 45°F after 15 minutes

Approximately 42–43°F after 1 hour

Held temp for 2 hours, then tumbler was emptied, refilled with room temp water.

Cooled to 49-50°F after 15 min and held for over an 1 hour.

USING TWO FROSTY CORES

Cooled to approximately 39°F after 15 minutes

Holding at 38°F after roughly 90 minutes

Tumbler was emptied, refilled with room temp water

Cooled back to 48°F at after 15 min

And at 45°F after 30 min., continued to cool to about 39-40°F and held there for over an hour.

Important Note

Frosty Core is designed for gradual, sustained cooling and holding a cold temperature for longer periods without watering down your drink, not immediate, rapid cooling.

For best performance:

Start with a refrigerated beverage when possible

Use the recommended number of Frosty Cores for your bottle size

Keep your bottle closed between drinks

Insulated bottles help retain the cooling Frosty Core provides

Performance varies based on starting beverage temperature, container insulation, ambient conditions, beverage volume and frequency of refills.

How Many Will I Need?

If you need to keep your drink cold for longer periods like all day at work or school, and/or plan to refill your bottle multiple times, an extra Frosty Core is recommended. Frosty Core takes up less space than the ice you would have used, so you are able to carry more beverage each time you fill it up, and having an extra 1-2 Cores to rotate ensures you always have one ready.

For example, If you use a standard 32 oz Owala, Hydroflask, or Stanley style insulated bottle or tumbler, using 2 Frosty Core is perfect for a long work or school day or multiple refills. And when you can, keep an extra 1-2 Frosty Core's in the freezer to rotate as needed.