ZEN ICE PRESS

-16°C BOOST (rapid-cooling type)
-10°C KEEP (long-lasting cold-retention type)

Watch the video here

From ice packs to a cold-retention system.

A cooler’s cold-retention performance is not determined solely by the temperature of its ice packs.

Where should the ice packs be placed?
How should items be cooled?
How efficiently can cold air be transferred?

ZEN Camps’ ice packs were designed not merely to cool items, but to improve cooling efficiency throughout soft coolers and cooler boxes.

A cold-retention system that uses cold air efficiently to cool both drinks and food.

The “Six-Can Contact 3D Cooling System” that cools by sandwiching
※Patent design application pending

Standard ice packs cannot adequately cool areas of cans or food other than the parts they touch.

However, ZEN Camps’ ice packs have a recessed shape, so cans can rest securely on them and another ice pack can also be placed on top.

Sandwiching cans and food from above and below allows cold air to transfer efficiently, enhancing cooling performance.

Even when using the large size on its own, cans can be kept organized without rolling around inside a cooler or soft cooler. (It can also be placed over them from above.)

A new cold-retention system that cools items faster and more efficiently.

Reduce dead space in the cooler

Large ice packs feature a specially designed recessed shape. They can hold small ice packs, keeping them compact during transport.

The small ice packs can also be placed in gaps inside the cooler.

By sandwiching cans from above and below and placing ice packs in the gaps along the sides, cans are cooled from all directions. This simultaneously reduces temperature variations and dead space inside the cooler, efficiently cooling everything.

The small type fits easily in ZEN Camps’ “Roll Top Cooler” and “Lunch Bag,” making it useful for everyday applications such as picnics and carrying packed lunches.

Two types to choose from based on your needs

-16°C BOOST (rapid-cooling type)

Chill drinks all the way to serving temperature in one go. This model prioritizes rapid cooling.

• Want to quickly chill drinks purchased at the campsite
• Want to get additional beer ice-cold at a barbecue
• Keeping meat and fish reliably cold / Transporting frozen foods
• Want to keep ice cream cold for several hours / Preserve the freshness of freshly caught fish

-10°C KEEP (long-lasting cold-retention type)

Keep things cold for longer. This model prioritizes long-lasting cold retention.

Recommended for keeping food fresh and for extended camping trips, including family camping. It helps preserve the freshness of not only drinks but also meat, fish, vegetables, and more.

• Keeping fruit and desserts cold
• Packed lunches for sports days and picnics
• Taking home refrigerated food purchased at the supermarket
• Sleeping in your car and long-distance travel

A complete cold-retention system when both are used together

Combining the two types creates a complete cooling and cold-retention system.

Testing and specifications

Compact storage

Store a small ice pack in the recess of a large ice pack. Place another large ice pack on top for compact transport.

Designed to balance storage capacity and cooling performance, it also reduces the amount of freezer space needed for cooling.

Freezing in a freezer

Freezing the ice packs requires a freezer temperature of -20°C or below and a freezing time of 18–24 hours or longer. (Depending on the freezer conditions, it may take even longer.)

For this reason, set the freezer temperature to -20°C or below before use.

※In summer, a freezer’s cooling capacity decreases and its temperature tends to rise, so we recommend setting it to as low a temperature as possible.