Carbon Black
High-contrast matte technical neutral.
The Calculated Chemist
Flask Vessel — Insulated Erlenmeyer Flask Water Bottle
$38.00
/
Shipping calculated at checkout.
Insulated Stainless Steel Erlenmeyer Flask Water Bottle · 440 mL
The Erlenmeyer flask, rebuilt in 304 stainless steel. Double-wall vacuum insulated, leak-resistant, and marked with permanent laser-engraved calibration graphics — a scientific form made durable enough for daily use.
- 440 mL / 15 fl oz usable capacity, on the 500 mL Erlenmeyer silhouette
- 304 stainless steel, inside and out
- Double-wall vacuum insulation
- Laser-engraved calibration markings, cut through the powder coat
- Leak-resistant lid with carry strap
Five matte finishes. Optional name or logo engraving. In-stock orders ship from Georgia within 1–2 business days.
Ordering for a team, lab, or institution? Volume pricing is published from 25 units, with one engraved logo included at every tier.
- Double-wall insulated
- Leak-resistant lid
- 304 stainless steel
- Giftable & engravable
Secure checkout. Standard orders ship quickly. Custom orders are reviewed before production.
“Finally, a science gift that feels premium instead of gimmicky.”
P
Carbon Black
I love my flask vessel! It is sleek, practical for regular hydration, and the workmanship is of the highest standard. Initially I was on the fence about getting it engraved, and I am delighted that I did, as it adds that personal touch of class ; )
M
Really high quality, liquid stays at it's temperature for hours. Fast shipping even though I had mine engraved. Would absolutely recommend!!
A
I paid extra for 2-4 business day shipping and yet it took damn near two weeks to get there.
J
Lab Flask Drink Bottle | Stainless Steel | Science Drinkware
G
Novel concept. Good gift for a chemist.
J
Beloved product as a chemist in trianing love it!
J
This unique water bottle works very well. It looks neat & is reasonably priced.
K
Very well made, beautiful packaging, and fun to drink from! Now if they could just make flask-shaped cupholders for these bottles… :)
J
Science Flask Water Bottle | Stainless Steel Drinkware
Product information
Capacity
440 mL / 15 fl oz usable. Built to the exterior dimensions of a 500 mL Erlenmeyer flask; the double wall and lid assembly occupy some interior volume.
Material
304 stainless steel, interior and exterior.
Insulation
Double-wall vacuum construction.
Finish
Matte powder coat in five standard colourways.
Markings
Volumetric graduations laser-engraved through the powder coat to the steel beneath — removed finish, not applied ink, so they cannot wear off.
Shipping
In-stock, non-engraved orders ship from our Georgia facility within 1–2 business days with tracking. Engraved orders take longer to allow for personalisation. Domestic laser-engraved bulk runs ship in about 7–10 days.
Care
Hand washing is recommended to preserve the powder coat, engraving, and lid components. Do not microwave.
Use
Water, coffee, tea, and everyday beverages. This is a drink vessel inspired by laboratory form — not laboratory equipment. Never use with chemicals or reagents.
Returns
Unused standard products may be returned per store policy. Personalised and custom orders are final sale unless defective.
We accept government purchase cards (GPC / SmartPay), university and hospital purchasing cards, and institutional purchase orders. Federal purchases under the $15,000 micro-purchase threshold can be placed directly on a purchase card.
Net 30 is available on approved institutional accounts, and a W-9 is provided on request. Written quotes are returned within one business day.
Volume pricing is published in full — from $30.00 per unit at 25 units down to $20.00 at 1,000 — with one laser-engraved logo included at every tier. Email wholesale@thecalculatedchemist.com with your quantity, colourway, and in-hands date, or request a $25 spec sample, credited toward your first order.
THE OBJECT
What is an Erlenmeyer flask?
An Erlenmeyer flask is laboratory glassware with a flat circular base, a body that tapers upward into a cone, and a short cylindrical neck. Designed in 1860 by the German chemist Emil Erlenmeyer, it is the shape most people picture when they picture a laboratory. The geometry is not decorative: the narrow neck lets a solution be swirled without spilling, the smaller opening slows evaporation, and the wide flat base resists tipping on a crowded bench. Graduation marks up the side read approximate volume at a glance — indicative rather than precise, which is why exact measurement calls for a graduated cylinder or a volumetric flask.
The qualities that make it good glassware make it good drinkware. What does not translate is the material: laboratory glass is fragile, uninsulated, and open at the top. The Flask Vessel keeps the geometry and changes everything else — 304 stainless steel instead of borosilicate, double-wall vacuum insulation instead of a single exposed wall, a leak-resistant lid instead of an open mouth, and calibration markings engraved through the powder coat rather than printed on it.
TCC-FV-440
FLASK VESSEL
- ORIGIN
- Emil Erlenmeyer, 1860
- GEOMETRY
- Conical body, narrow neck
- MATERIAL SHIFT
- Glass to stainless steel
- FUNCTION
- Insulated daily carry
OPEN LAB
This vessel started as an Erlenmeyer flask. Help choose which instrument comes next.
Vote in Open LabFINISH ARCHIVE
Colorways selected for restraint, not novelty.
Each finish is selected to support the object’s form rather than distract from it. The palette is built around technical neutrals and controlled color: finishes that work across individual use, corporate gifting, and brand customization.
Select color and availability through the product options above.
Ionic White
Clean clinical finish.
Quantum Blue
Deep technical blue.
Chlorophyll Green
Muted botanical green.
Cryo Cyan
Brighter technical blue.
FOR TEAMS
Ordering for a team or organization?
Add your logo, create a branded program, or request a mockup for corporate gifting, museums, laboratories, universities, and distributor projects. Volume pricing is published in full — from $30.00 per unit at 25 units down to $20.00 at 1,000 — with one laser-engraved logo included at every tier.
C-00
PLACEMENT RECORD
Back-side logo placement · lid mark · strap customization · distributor support
Commissioned by teams at
AGAINST DISPOSABLE SCIENCE SWAG
Not another catalog object with a science graphic printed on it.
Most science merchandise starts with a generic product and adds a periodic table, molecule, or lab joke. The result is often disposable, forgettable, and disconnected from the material culture of science.
E-00
ENEMY RECORD
Original form · durable material system · permanent markings · daily function
GENERIC SCIENCE SWAG
Graphics added after the fact.
A standard catalog item with a science reference printed on the surface.
- Printed novelty references
- Generic product silhouette
- Short product life
- Easy to forget or discard
THE FLASK VESSEL
The scientific object as the starting point.
A recognizable scientific geometry rebuilt as a durable, daily-use vessel.
- Original Erlenmeyer-inspired form
- 304 stainless steel body
- Permanent laser-engraved markings
- Useful enough to keep in rotation
Made to be used. Built to be kept.
QUESTIONS & CARE
Use it daily. Treat it like a finished object.
The Flask Vessel is built for daily use, but the finish, lid, strap, and engraved details should be treated with the same care as any finished object.
Practical answers before purchase, use, and customization.
R-00
Care is part of the object system.
Hand washing is recommended. Avoid microwaves, corrosive liquids, laboratory chemicals, and abrasive cleaning methods.
- WASH
- Hand wash recommended
- HEAT
- Do not microwave
- USE
- Everyday beverages only
- CUSTOM
- Final sale unless defective
R-01 What is an Erlenmeyer flask used for?
In a laboratory it is used for mixing, swirling, heating, and titrating solutions — anywhere the contents need to be agitated without spilling, or left to stand without evaporating. Its conical shape is what makes those tasks easier than they would be in a beaker. It is named after Emil Erlenmeyer, the German chemist who designed it in 1860, and is also called a conical flask or titration flask.
R-02 Is this actual laboratory equipment?
No. It is a drink vessel built in the shape of one. Use it for water, coffee, tea, and everyday beverages — never for chemicals, reagents, corrosive materials, or experimental substances.
R-03 Care Instructions
Hand washing is recommended to preserve the powder-coated finish, engraved details, and lid components. Do not microwave. Ensure the lid is fully secured before carrying.
R-04 Personalisation and engraving
Name or logo engraving is available as an optional add-on. It is laser-engraved into the powder coat — permanent, not printed. The primary position is the back of the vessel with the name or logo oriented vertically; the volume markings always remain on the front. Bulk orders can add lid-top engraving and customised fabric straps.
R-05 Shipping
In-stock, non-engraved orders ship from our Georgia facility within 1–2 business days with tracking. Engraved orders take longer to allow for personalisation. Domestic laser-engraved bulk runs ship in about 7–10 days, with longer timelines for large custom programs.
R-06 Returns
Unused standard products may be eligible for return according to store policy. Customized and personalised products are final sale unless defective.
R-07 Ordering in bulk for a team or event
Bulk orders start at 25 units with one laser-engraved logo included, and volume pricing is published in full at /pages/bulk-orders. Purchase cards, purchase orders, and net 30 on approved institutional accounts are accepted. Bulk and engraved orders are quoted and invoiced directly rather than checked out on the site.
USE NOTE
The Flask Vessel is a drink vessel inspired by laboratory form. It is not laboratory equipment and should not be used with chemicals, reagents, corrosive materials, or experimental substances.
Ready for daily use.
440 mL · 304 stainless steel · double-wall insulated
O-11
FINAL RECORD
Flask Vessel · individual object · system
