Will this glass keep my drink hot or cold long enough?

Ovalware’s double-wall design offers excellent insulation for a glass mug—keeping drinks hotter than standard ceramic or single-wall glass, while staying cool to the touch. It’s ideal for those who savor their drinks fresh without the overly prolonged heat of sealed thermoses.

Is the Double Wall Coffee Tasting Glass fragile or easy to break?

While the Double Wall Coffee Tasting Glass is made from heat-resistant borosilicate glass, it's still glass so it is essential to handle it with care to prevent breakage. Avoid sudden temperature changes and impacts.

Is it worth the price?

Yes! Our Double Wall Glass is made from heat-resistant borosilicate glass, designed to handle both hot and cold drinks safely. The double-wall insulation keeps hot drinks hot and cold drinks cold—without condensation or burning your hands.

Will my coffee be too hot or too cold to hold?

Not at all. The double-wall design insulates your tea or coffee, so it stays hot or cold inside—while the outside stays comfortable to hold, with no condensation or burning.

Can I safely use metal spoons inside without scratching?

Yes, you can use metal spoons. The borosilicate glass is durable and resistant to light scratching, but to keep it looking its best long-term, we recommend using wooden or silicone utensils when possible.

What is between the two layers of glass?

There is no vacuum between the two layers of glasses, it is a layer of air. The holes vent the hot air to prevent the glasses from shaterring since glass expands when heated. The divot is added to help equalize the air pressure when the glasses are cooling down. The holes are then sealed once the glasses have cooled with a food-safe UV cured resin.

Would you add a handle to your glass for more comfortable use?

Hey have you heard of our Double Wall Mug? If not, let's have a look.

Is it microwave safe? Can I use it to make tea in microwave?

Yes, all Ovalware glass products are microwave safe.

What drinks work well in the Double Wall Tasting Glass?

Designed for coffee tasting, but works for anything: espresso, cold brew, cortado, matcha, wine, spirits, tea. The 350ml capacity and wide bowl shape concentrate aroma toward you with every sip.

Set of two double wall glasses with freshly brewed coffee

Side view of double wall coffee glass highlighting insulation layer

Close-up of thick glass rim, perfect for hot or iced coffee

Glass of cold brew coffee with ice inside insulated double wall glass

Espresso-style coffee served in double wall glass on dark surface

Lifestyle shot of coffee served in glass with minimal tabletop aesthetic

Double wall glass placed next to coffee beans and scoop

Beautiful gift-ready packaging, the cup is great for yourself or loved ones

Ovalware Double Wall Coffee Tasting Glasses — set of 4, 350ml borosilicate glass

Double Wall Coffee Tasting Glass - 350mL/12oz

$39.99 USD

Style:

Set of 2 Set of 4

Variant

Every great cup of coffee deserves a glass that does it justice. Our double-wall coffee tasting glasses (350ml / 12oz) are crafted from hand-blown borosilicate glass, designed to highlight your brew’s aromas, colors, and flavors whether it's cold brew, pour-over, espresso, or your favorite tea.

The single-lip design shapes your sips perfectly, while the double-wall keeps your coffee at the right temp, without condensation or heat transfer. Plus, seeing your coffee through crystal-clear glass adds a bit of magic to your daily ritual.

From bloom to last sip, these glasses invite you to slow down and savor every moment.

Product Details

Volume:
350 ml (12 fl oz.)

Dimensions:
3.35(l) x 3.35(w) x 4.8(h) inches

Materials:
Durable, high-quality hand-blown high quality borosilicate glass

Double wall body, single lip design

Heat resistance:
Withstand temperatures from -30°C to 400°C / -22F to 752F

Comes in elegant and protective packaging

Product Features

Withstand temperatures from -30°C to 400°C / -22F to 752F

Dual-layer design helps to keep your drinks at its desired temperature

The aroma-enhancing shape & design perfects all tasting experiences

30 Days risk-free return with a full refund if unsatisfied

Glass Guarantee: because we believe in our premium glass manufacturing process, if it breaks in the first six months of purchase we'll replace it. You just simply have to pay the shipping fees ($5)

Warranty

Glass Quality Guarantee
We stand by our glassware with a 6-month Glass Quality Guarantee. If your glass breaks, we’ll send a one-time replacement—just email us at support@ovalware.com with your order number and a photo. A $5 shipping fee applies for U.S. mainland; other regions may vary. This guarantee applies only to original buyers or gift recipients who purchased directly from our website or Amazon store. Replacements do not carry a new guarantee.

Manufacturer Warranty
OVALWARE offers a 1-year warranty on products bought directly from us or our authorized resellers, covering manufacturing defects in materials or workmanship. This warranty applies only to the original purchaser or gift recipient and excludes normal wear, misuse, or damage from impact or pressure. For questions, contact our support team for assistance at support@ovalware.com. More on https://www.ovalware.com/pages/warranty-policy

Return Policy

We offer free returns within 30 days of purchase. Items must be unused, in original condition and packaging, with proof of purchase. Returns after 30 days or items that are damaged, used, or missing parts (not due to our error) aren’t eligible.

To start a return, email us at support@ovalware.com—please don’t send items back to the manufacturer directly. You will find all information here.

REFUNDS

Once a return process is established and we have received and inspected your product, we will send you an email to notify you, as well as the approval or rejection of your refund.

If you are approved, your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a few business days.

Shipping Policy

United States mainland, Armed Forces Americas, Armed Forces Europe, and Armed Forces Pacific:

Standard: 3-5 business days - Starting at $4.95
Expedited: 2-3 business days - Starting at $10.00

**We offer free standard shipping for U.S. orders over $65.00**

Alaska & Hawaii:

Standard: 4-7 business days - Starting at $10.00

International:

Standard: 5-10 business days - Starting at $15.00

FAQs

What is the Ovalware Double Wall Tasting Glass?

A 350ml (12oz) double-wall borosilicate glass designed for tasting coffee, espresso, and specialty beverages. The wide open bowl concentrates aroma like a wine glass. Double-wall construction keeps hot drinks hot and cold drinks cold while the exterior stays comfortable to hold.

How long does it keep drinks at temperature?

Noticeably longer than standard glass — roughly 2–3x. The air layer between the walls slows heat loss for hot drinks, and completely prevents condensation on the outside for cold drinks.

Is it fragile?

More durable than regular glass. Borosilicate resists thermal shock — you can pour hot liquid into a cold glass without cracking. Withstands -30°C to 400°C. It will still break if dropped hard — handle with normal care.

What drinks work well in this glass?

Designed for coffee tasting, but works for anything: espresso, cold brew, cortado, matcha, wine, spirits, tea. The wide bowl shape concentrates aroma toward you with every sip.

Is it dishwasher safe?

Yes. Top rack recommended. The double-wall seal is permanent — no water enters between the walls.

Double Wall Coffee Tasting Glass - 350mL/12oz

$39.99 USD

1-year warranty

No worries here.

Satisfied or refunded

Enough time to fully experience our products.

Free Retuns

We didn't match? No worries, it's on the house.

Glass Guarantee

We've got you covered for the first six months.