Achieve sustained, sub-zero temperatures on your benchtop with the reusable -10°C Cool Brick. This high-performance passive cooling block is designed to maintain a consistent sub-freezing temperature for hours, protecting your most sensitive samples, enzymes, and reagents. Simply freeze the brick overnight in an ultra-low temperature freezer to charge it. When used with a compatible aluminum cooling chamber, it creates a versatile system for keeping a wide variety of samples safely frozen for extended processing or transport. Key Features & Benefits Long-Lasting Sub-Zero Cooling: When pre-frozen, provides up to 7 hours of stable benchtop temperature control without the need for dry ice. Maintains -10°C Temperature: Engineered to consistently hold a temperature of approximately -10°C, ideal for preserving the integrity of frozen samples. Simple and Reusable: Just freeze overnight in a -80°C freezer to recharge, offering an economical and eco-friendly cooling solution. Versatile System Component: Designed to be used with CoolSafe® boxes and interchangeable aluminum cooling chambers for tubes and plates. Rotational Use: Multiple bricks can be used in rotation to maintain the desired sub-zero temperature for even longer experiments or all-day use.