




Filling a narrow-mouthed flask usually turns into a sticky, frustrating game of chance. I spent a week putting the Stainless Steel Flask Funnel to the test to see if it actually makes the process as seamless as advertised.
Crafted from stainless steel 201, the funnel feels lightweight yet impressively sturdy, weighing in at just four grams. Its dimensions are well-considered, with a 35mm wide mouth that catches liquid easily and a 7mm base that fits securely into standard flask openings.
Using the funnel is remarkably straightforward; you simply place it in the flask and pour, which effectively removes any guesswork or cleanup. It is small enough to tuck into a pocket, making it a reliable travel accessory for those who value efficiency in their drink preparation.
This is perfect for the dedicated flask user who wants to protect their expensive spirits from accidental spills.
The Stainless Steel Flask Funnel earns a solid 4.63 rating for its sheer simplicity and effective design. While $99 is a premium cost for such a compact tool, the quality of construction and the lifetime warranty make it a purchase that offers lasting peace of mind.