This article is Part 2 of our deep dive into the art of uncorking. For the full story, check out: The Waiter, The Butler, and The Viral Opener.
The Case Study Bottle
Right now, I am staring at a unicorn in my cellar. It is the very last bottle of Zambartas Lefkada-Shiraz 2006.
It has been resting in my Eurocave for 20 years. The temperature has been perfect. The humidity has been flawless. The wine inside is in pristine condition.
But there is a major threat: the cork.
After two decades on its side, sediment has gathered right up near the neck.

The cork has been continuously bathed in wine since 2006. It is swollen, soft, spongy, and essentially “glued” to the glass.
Drive a standard Waiter’s Friend into this cork, and it will disintegrate. You will end up with a glass full of expensive cork dust.
When dealing with a vintage this old, you have to change your tools. You don’t call the waiter. You call the butler.
The "Butler’s Friend"
It grips. It doesn't pierce
This strange-looking gadget is the ultimate tool for old wine. Historically, it was known as the “Butler’s Friend.”
Legend has it that 19th-century British butlers favored this tool because it doesn’t pierce the cork. A clever butler could extract the cork flawlessly, drink a glass of the lord’s premier cru, top the bottle off with water, and slide the unblemished cork right back in. No hole, no evidence.
While I don’t recommend watering down your wine, the mechanics behind it are brilliant.
Instead of a metal spiral that bores into the center, it uses two parallel metal prongs. You slide these blades down the outside of the cork, breaking the seal between the cork and the glass without touching the fragile core.
💡 Why It Is Used
Preserves Fragile Corks: Traditional corkscrews pierce the middle of a cork, which can cause aged, dry corks (typically found in wines aged 10+ years) to crumble into the wine. The Ah-So bypasses the core entirely.
No Crumbles: It hugs the outer edges of the cork, removing it completely intact.
Saves Broken Corks: If a standard corkscrew snaps a cork in half, an Ah-So can often slide into the neck to rescue the remaining piece.
Resealing Capability: Because it leaves no hole in the middle, you can use the Ah-So to slide the cork right back into the bottle neck.
Is it called “Ah-So”?
In France, this nifty little tool goes by the name Bilame (which means two blades). In the States they call it… Ah-So! The term actually springs from the cheerful German expression “Ach so!”—which kind of means “Oh, I see!” or “Ah, now I get it!” The name became popular in the U.S. because of a German company called Monopol. They tried several names, like “Ah-Ha,” before “Ah-So” stuck in the 1970s.
But after hosting a colorful bunch of guests from around the globe, I’ve noticed my German pals throwing around the term “Ah-So” like confetti!
When you hand this quirky gadget to a newbie, their face is a mix of puzzlement and curiosity. But as soon as you show them how it glide-and-pulls the cork with finesse, their reaction is almost always a delighted… “Ach so!” It’s a perfect match! And while the French term Bilame refers to the tool’s clever “two-blade” design, it’s really the quirky grip of those parallel prongs that makes it a standout, especially compared to the ol’ jab-and-twist of a regular corkscrew.
How to Use an Ah-So (Bilame) Wine Opener:
It looks intimidating, but using it requires a gentle touch and a rhythmic technique rather than raw force.

- Insert the Long Prong: Notice that one prong is longer than the other. Slide the longer prong down between the cork and the glass.
- Align the Short Prong: Push down slightly until the shorter prong can clear the top and slide down the opposite side.
- Rock and Slide: Do not push straight down, or you risk shoving the cork into the wine. Gently rock the handle back and forth with a “wiggling” motion to shimmy it down.
- Twist and Pull: Once fully inserted, grip the handle firmly. Slowly twist and pull upward simultaneously to break the friction and slide the cork out intact.
[Read Part 1: Why the “Worm” on Your Corkscrew Matters]
The Right Tool for the Right Bottle
Wondering when to reach for the Ah-So instead of your standard corkscrew? Here is a quick breakdown:

Save Your Vintages
You do not want to ruin a 20-year-old bottle of Zambartas at the very last second.
If you plan on drinking aged wine, this tool is non-negotiable. The premium Bilame features the exact high-quality, spring-steel prongs you need to handle ancient corks safely and elegantly.
Coming Up Next in Part 3: > The Ah-So is incredible, but it has one fatal flaw…



