Hario
HARIO Heatproof Rocks Glass (300ml/10oz)
Best versatile tumbler for daily hot and cold beverage enjoyment.
Experience the enduring quality of Hario's Heatproof Rocks Glass, a testament to their 1921 legacy of fine glassware. Crafted from superior heat-resistant borosilicate glass, this 300ml (10oz) glass boasts a thin, lightweight design for a comfortable and sophisticated feel. Its exceptional durability ensures longevity, making it ideal for everyday use. Enjoy your favorite hot or cold beverages with confidence, as this versatile glass is safe for hot water, microwave, and dishwasher use, offering ultimate convenience.
$20.99
Owner Satisfaction
4.5
/ 5
Category Rank
4318
/ 9228
#4318 in Tumblers
Price vs Category Average
-60%
Below average
Capacity
30010
/ ml (oz)
Who it's for
- Coffee lovers transitioning between hot brews and iced drinks
- Busy households prioritizing dishwasher and microwave convenience
- Design minimalists showcasing the visual appeal of their beverages
Who should skip it
- Users wanting long-lasting temperature retention or condensation-free surfaces
- Cocktail enthusiasts preferring the heft of traditional heavy-bottomed glassware
- Budget-conscious shoppers seeking value-priced everyday glassware
Performance breakdown
Thermal Versatility
Borosilicate construction handles boiling water and microwave cycles with total ease.
Tactile Experience
Thin-wall design offers a refined, lightweight feel in the hand.
Maintenance Ease
Dishwasher-safe glass makes daily cleanup completely effortless.
Structural Durability
Resilient material withstands the rigors of frequent, everyday use.
Ergonomic Utility
Classic round shape provides a comfortable grip despite lacking a handle.
Aesthetic Versatility
Minimalist silhouette complements any beverage from morning coffee to evening spirits.
Key Specs
Capacity
300ml (10oz)
Material
Heat-resistant borosilicate glass
Design
Thin wall, lightweight
Durability
Extremely durable
Compatibility
Safe for hot water
Care
Microwave safe
Care
Dishwasher safe
Insulation Type
Single Wall
Features
- Durable heat-resistant glass construction
- Elegant thin-wall design
- Generous 300ml capacity
- Safe for hot beverages
- Microwave and dishwasher safe
- Lightweight for comfortable handling
- Designed for everyday use
- Classic round shape
What customers say
Customers highly value the HARIO Heatproof Rocks Glass primarily for its exceptional versatility and robust quality. Its heat resistance makes it perfect for serving everything from hot coffee to chilled cocktails. Reviewers consistently praise the design, noting it feels substantial and comfortable to hold while maintaining an elegant clarity that showcases beverages beautifully. The glass lives up to the Hario reputation for superior craftsmanship and durability, justifying its premium positioning. While some note the initial investment is higher than standard glassware, most agree the lasting functionality and aesthetic appeal make it a worthwhile addition to any collection. It is widely seen as a dependable, high quality piece that elevates the daily drinking experience.
Know before you buy
Yes, the glass is made from heat-resistant borosilicate, which is specifically designed to withstand high temperatures, including boiling water.
While the glass is thin and lightweight for a sophisticated feel, borosilicate glass is known for its high durability and resistance to thermal shock, making it suitable for everyday use.
Yes, this glass is microwave safe, allowing you to easily reheat beverages directly in the tumbler.
No, this is a single-wall glass, so it does not provide the thermal insulation found in double-walled or vacuum-insulated tumblers.
Yes, it is dishwasher safe, making it convenient for daily cleaning.
Still have a question?
Ask Hayley anything about this product before you decide.