Hearth Mug

Each mug holds 4 ounces, making them perfectly sized for a single or double shot of espresso, a macchiato, or a small serving of coffee.

Each mug in this set holds 4 ounces, making them perfectly sized for espresso shots or small, concentrated coffee servings.

While the borosilicate glass is durable, we recommend hand washing these mugs to ensure the clarity and structural integrity of the double-walled construction remain pristine over time.

Yes, the double-walled borosilicate glass acts as an insulator, which helps retain the heat of your beverage significantly longer than a standard single-wall ceramic mug.

Yes, the double-walled construction provides excellent thermal insulation. It keeps your beverage at the ideal temperature while ensuring the exterior remains cool to the touch.

We recommend hand washing these mugs. While they are durable, the dishwasher can compromise the seal or clarity of the glass over time.

Yes, they are microwave safe, allowing you to easily reheat your espresso or coffee without worrying about the glass.

Yes, they are microwave safe, so you can easily reheat your drink if it cools down before you finish it.

Borosilicate glass is a high-quality material known for its superior resistance to thermal shock. It is less likely to crack when exposed to sudden temperature changes compared to standard glass, making it ideal for hot beverages.

Borosilicate glass is known for its thermal shock resistance and durability, making it stronger and more resistant to temperature changes than standard glass, though it should still be handled with the care you would give any fine glassware.

No, the double-walled construction ensures the exterior remains cool to the touch even when the mug is filled with piping hot coffee.