Ratio Hearth Coffee Cup
Best insulated glassware for those who enjoy slow, hot morning rituals.
These double-walled glasses turn a standard morning caffeine fix into a tactile experience that keeps your brew hot without burning your palms. While they lack the weight of traditional ceramic, the thermal performance and shatter-resistant durability make them a far more practical choice for daily use.
$21.00
Who it's for
- Design-conscious coffee drinkers seeking a refined aesthetic
- Slow sippers who prefer their coffee hot for longer
- Comfort-focused users who value ergonomic, balanced drinkware
Who should skip it
- Budget-minded shoppers looking for affordable everyday mugs
- Clumsy handlers needing durable, chip-resistant kitchenware
- Frequent hosts requiring larger sets for entertaining guests
Performance breakdown
Thermal Retention
Double-wall insulation keeps your morning brew hot significantly longer than ceramic.
Handling Comfort
The exterior stays cool, making the handle-less design effortless to hold.
Material Durability
Borosilicate glass offers impressive resistance to daily scratches and minor impacts.
Cleaning Convenience
Hand-washing is required, which may be a drawback for busy households.
Versatility
Microwave compatibility adds practical utility for reheating coffee or tea.
Aesthetic Appeal
The sleek, floating liquid effect elevates any coffee ritual instantly.
Key Specs
Capacity
8 oz
Material
Borosilicate Glass
Quantity
Set of 2 cups
Microwave Safe
Yes
Construction
Double wall insulated
Dishwasher Safe
No
Insulated
Yes
Handle
No
Shape
Round
Know before you buy
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Ask Metto anything about the Ratio Hearth Coffee Cup before you decide.