“Drinkable Cooling”: Core Cooling Pouch for Frozen PET Bottles to be Pre-Sold on Makuake Starting May 1
Idea Co., Ltd. (Headquarters: Nakano-ku, Tokyo) announced that it will begin pre-sales of its “Core Cooling Pouch” on the crowdfunding platform Makuake starting Friday, May 1, 2026. This product is designed to cool the body’s core using a frozen PET bottle, with the unique feature that the melted beverage can then be consumed for hydration.
Pre-Sales Ahead of the Summer Heat
In recent years, Japan has experienced an increasing number of scorching hot days, making heatstroke prevention critically important. This product offers a new cooling solution designed to be available before the peak summer season, which is why it is being offered for pre-sale through crowdfunding.
Product Features
The primary feature of this product is its ability to provide both heat relief and hydration simultaneously. It uses a frozen PET bottle (approximately -15°C) directly as a cooling agent to efficiently cool the body’s core.
Beverages readily available at convenience stores can be utilized, allowing for continuous use even when on the go.
Furthermore, the beverage used for cooling can be consumed once it melts, combining cooling with essential fluid intake.
Combined with an insulating structure, the pouch achieves a cooling duration of approximately 6 to 9 hours. (Duration may vary depending on the usage environment.) The product incorporates a structure for which patent and utility model applications have been filed.
Usage Scenarios
The pouch is intended for use in extremely hot environments such as outdoor work, sports, and festivals. It can also be easily integrated into daily commutes and other regular outings.
Makuake Project Overview
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Sales Start Date: May 1, 2026 (Friday)
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Sales Method: Pre-sales via crowdfunding on Makuake
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Project Page: https://www.makuake.com/project/taikanreikyaku/
Future Developments
The product is anticipated to be widely used for future heatstroke countermeasures across various scenarios, with expectations for media coverage. The product incorporates a structure for which patent and utility model applications have been filed.
