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Poisonous Plants 32 oz Steel Bottle

$ 49.95
6 reviews
Item is in stock Only 0 left in stock Item is out of stock Item is unavailable

Fill this Poisonous Plants bottle with your favorite elixir so you can enjoy it at your own pace. Your hot tea or cold kombucha will be ready whenever you are, so you can feel free to get lost in your studies, plans, or walk in the woods.

With a textured design for a unique tactile experience, this flask will keep your drink hot or cold until you're ready to enjoy it.

Hand-wash Only
Carbon Neutral Shipping & Operations
Compostable Packaging

Here's how it works: the space between the inner and outer flask wall is evacuated, creating a vacuum (well, a partial vacuum anyway...). In order for heat transfer to take place from the outside world into your cold drink, or from your hot drink to the outside world, it needs nearby molecules to excite. If there aren't many molecules nearby, as is the case in a vacuum, the heat's energy can't easily be passed along, so your drink stays close to the temperature it was when you put it into the flask for a really long time. 

Simply stated, vacuums make great thermal insulation!

Volume 32 oz | 950 mL
Width 3.75"
Height 9.25"
Opening Wide mouth
Material High-grade stainless steel
Origin Designed in Oregon, Built responsibly overseas
Cap Material High-grade stainless steel, silicone ring
Care Hand wash only

Flat Rate $9.95
Orders $75+ ship for free
Expedited service available


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

If you're shipping to Europe, please check out our EU website for lower shipping rates and quicker delivery times.

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within 30 days of purchase

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On USA orders over $75

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Customer Reviews
4.8 Based on 6 Reviews
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Filter Reviews:
Vogt B.
United States United States

Poisonous plants

I love the graphics. I trust that it will keep liquids at optional temperature.

Chrystal M.
United States United States

So happy with my purchase. Very nice quality and the customer service is great. Would recommend highly!

A Cognitive Surplus Customer
United States United States


These water bottles are fantastic! They keep my water cold from the fridge for the whole day at work. I just wish they came with a straw inside that fit under the screw lid. But, they don't leak and the prints are great!

Lisa R.
United States United States

Excellent thermos

I finally have hot coffee at work after so long drinking leukwarm beverages at best. Very robust, sturdy, no leak cap, and BONUS very cool graphics. My favorite thermos. Bought one for my best friend and one for me!

Cognitive Surplus Poisonous Plants 32 oz Steel Bottle Review
Carolyn M.
United States United States

Love love love it

Easy to wash and care for. Great quality, beautiful and it keeps my drinks cool all day long.

A Cognitive Surplus Customer
Nancy W.
United States United States

Love My Poisonous Plants!

Beautiful vessel. Only “complaint”: It was a much larger bottle than those that family members bought a few months ago, so it doesn’t always fit into beverage holders. I did NOT have a size option, nor did I know there were apparently size options…if there were options. I will be buying more as Christmas gifts! Thank you.

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Inspired by Science

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