Core Sample - Tea Infuser

$ 34.95

Carry your favorite tea and your love of earth science with you throughout the day!

In addition to keeping your beverage insulated against temperature change, this double-walled glass infuser flask is sure to keep you digging deeper into the mysteries of the earth. Get lost in the layers of geologic history while you hunt for the fossilized remains of creatures who lived in each era. 

Brew your beverage using the removable basket or remove the basket to infuse with fruit/veggies.

Volume: 16 ounces
Width: 2.5"
Height: 9"
Material: Double walled glass, high-grade steel
Cap: Bamboo & BPA-Free Plastic
Care: Top rack dishwasher safe, handle with care
When your order arrives, open it up and take a look. If anything isn't as expected, got damaged in transit, or doesn't fit properly, let us know and we'll make it right.

Flat Rate $5.95
Orders $75+ ship for free
Expedited service available


Shipping is available to most countries. See details at checkout.

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Customer Reviews
4.9 Based on 8 Reviews
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Mamie R.
United States United States
Perfect gift

I purchased the Core sample tea infuser as a birthday gift for my college aged daughter. She is a science student who is highly concerned with reducing, reusing, and recycling, and this science themed glass infuser is perfect. It is elegant, functional, and a great conversation piece.

Estrella P.
United States United States
Perfect Mother's Day Gift!!

I bought this for my mother because its everything she loves, tea and paleontology and shes used it almost every day since I gave it to her. The double wall works well to keep things cold or hot.

Alana F.
United States United States
The coolest

This was a birthday gift to myself, a geology student, and it was far better than I was anticipating. Very sturdy, high quality, 10/10 have recommended this to everyone I've spoken to for the past week

Allyn M.
United States United States
Works great and looks beautiful

Is it a piece of art? Yes, and also it's a tea infuser. Paired with my delicious local loose leaf tea, this infuser is really handy with the double chambered tea strainer. We have another similar infuser that came with a coozie, and when using this for hot tea, that was handy, though ill fitted, because the glass gets super hot. But it's exactly what I wanted.

Cognitive Surplus Core Sample - Tea Infuser Review
Jade E.
United States United States

This infuser brings me great joy.

Katherine A.
United States United States
Need to create spear silicone cushion

My daughter adored this infuser. She bumped it lightly with the tea kettle while trying to pour hot water in and it shattered. This was already a replacement infuser because the first one rolled offThe front seat of her car and shattered in the floorboard. I would love it if you or someone could create a silicon shell for a buffer.

Susan S.
United States United States
Beautiful and functional.

I bought two. This and the chemistry one. Beautiful, solid, and the double wall construction is great for thermal control. Perfect for keeping your tea hot while you work. I am a huge new fan of this company—finding folks who get the science right and with functionality and great designs is rare.


Bought this as an anniversary present for my partner about to start grad school for geology, the quality and design are stunning and beautiful as always! This is the second piece of glassware that has arrived to me perfectly safe, and I love the environmentally friendly packaging. Thank you so much, I know he's going to love it!

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