NOT LABORATORY EQUIPMENT
Beverages only — never reagents
The Flask Vessel is a drink vessel inspired by laboratory form. It must not be used with laboratory chemicals, reagents, corrosive liquids or experimental substances.
FLASK VESSEL · OBJECT 01 · FV-01
Care, warranty and support
How to wash it, what not to put in it, and what happens if something is wrong. The commercial terms below are the operative ones — they are stated here in the same words as the full policy.
- ≈440 mL / 15 fl oz usable
- 304 stainless, double-wall vacuum
- Matte powder coat
01 · QUICK REFERENCE
Six rules, and the rest is detail
- WASH
- Hand wash recommended.
- HEAT
- Do not microwave and do not freeze.
- USE
- Everyday beverages only: water, coffee, tea.
- CHEMICALS
- Never use with laboratory chemicals, reagents, corrosive liquids or experimental substances.
- LID
- Secure fully before carrying.
- FINISH
- Avoid abrasive cleaners and scouring pads.
02 · CLEANING
Cleaning, in four steps
Wash with soap and hot water
Fill the vessel with warm or hot water and a small amount of dish soap, secure the lid, and shake vigorously. Empty it and rinse thoroughly. Hand washing is recommended to preserve the powder-coated finish and ensure long-term durability.
Reach the contours with a flask brush
For a deeper clean, use a silicone flask brush shaped to reach the interior contours of the vessel. Avoid abrasive cleaners or scouring pads, as they may damage the finish.
Wash the lid and the threads separately
Clean the threads on both the lid and the neck, where residue collects. Wipe the fabric strap and let it dry fully if it gets wet.
Dry fully, then store open
Dry everything before storing, and store with the lid off or only loosely fitted.
A silicone cleaning wand sized for this vessel is sold separately, and is included in the Flask Vessel Lab Kit.
03 · USE RESTRICTIONS
Read these before the first fill
These three are kept in plain sight rather than folded into an accordion, because they are the ones that damage a vessel or a person.
CAPACITY
≈440 mL usable, in a 500 mL silhouette
The vessel is built to the exterior dimensions of a 500 mL Erlenmeyer flask, and the engraved graduations follow that form. The double-wall construction and the lid assembly occupy some of the internal volume, so true usable capacity is approximately 440 mL — about 15 fl oz.
HEAT AND COLD
No microwave, no freezer
A vacuum-insulated stainless body cannot go in either. Damage caused by microwaving or freezing is not covered.
04 · WARRANTY, RETURNS AND SUPPORT
What happens if something is wrong
Scuffs and finish marks are expected on an object carried every day. Faults are not. These are the deadlines and the coverage, stated as they are in the full policy.
- DAMAGED, DEFECTIVE OR WRONG ON ARRIVAL
- Report within 3 days of delivery with your order number and photographs of both the item and the packaging.
- HOW THAT IS RESOLVED
- A refund or a replacement. You will not need to ship the item back, and you will not pay anything.
- WHY PACKAGING PHOTOGRAPHS
- Carriers set their own deadlines on damage claims, and photographs of the packaging are what allow us to file one.
- IF YOU CHANGE YOUR MIND
- Standard, unused vessels in their original packaging may be returned within 14 days of delivery. Contact us before sending anything back.
- RETURN SHIPPING
- Return shipping to our facility is the buyer's responsibility, and original shipping charges are not refunded. Refunds are issued once we have received the item back and inspected it.
- MANUFACTURING DEFECTS FOUND LATER
- A lid seal that fails, a coating flaw, or insulation that stops performing: contact us with your order number, a description and photographs. Reviewed and resolved case by case. We do not publish a fixed warranty term.
- CUSTOM AND ENGRAVED VESSELS
- Final sale — they are made for a single buyer and cannot be resold. If one arrives damaged or defective, or the engraving does not match what was approved, that is handled as a defect rather than a return.
- NOT COVERED
- Normal cosmetic wear from daily use; accidental damage, drops and dents; damage from microwaving or freezing; damage from chemicals, reagents or other non-beverage contents.
Custom, engraved and bulk orders: wholesale@thecalculatedchemist.com. Everything else: info@thecalculatedchemist.com.
05 · COMMON QUESTIONS
Frequently asked questions
Is the Flask Vessel dishwasher safe?
Hand washing is recommended, to preserve the powder-coated finish and the long-term durability of the vessel. The engraving is cut into the finish rather than printed, so the marking itself survives washing.
Which brush should I use?
A silicone flask brush shaped to reach the interior contours. One sized for this vessel is sold separately, and is included in the Flask Vessel Lab Kit. Avoid abrasive cleaners and scouring pads.
How long is the warranty?
We do not publish a fixed warranty term. Arrival damage and defects have the stated 3-day reporting window and are resolved at no cost to you. Manufacturing defects that appear later are reviewed and resolved case by case — contact us with your order number, a description and photographs.
Can I return an engraved vessel?
No. Personalised and engraved vessels are final sale, because they are made for a single buyer and cannot be resold. A vessel that arrives damaged or defective, or whose engraving does not match what was approved, is handled as a defect rather than a return.
What should I send when I report a problem?
Your order number, a short description of the issue, and photographs of both the item and the packaging where damage or a defect is involved. Use the product support form or email info@thecalculatedchemist.com.
Still need a person
Product support reads every message. Include your order number and photographs where something is damaged.
