Puffco review
Puffco Hot Knife Review (2026): The $50 Tool That Fixes Loading
It is a dab tool with a heater in it. That sounds unnecessary until you have used one, and then loading a chamber with a cold tool feels like scraping paint.
| Pick | Why | Price | |
|---|---|---|---|
 | Puffco Hot Knife Verdict: 4.5 / 5 | The accessory every e-rig owner should own. | $50.00 |
What it does
The Hot Knife is a metal loading tool with a small battery. Press the button and the tip warms in a few seconds; touch it to your concentrate and the dab slides off the tool into the chamber instead of sticking, stringing, and ending up on the rim. It charges on a magnetic USB cable and the tip is replaceable.
Why it matters more than it sounds
Concentrate on the rim of a chamber, or smeared up the side, is concentrate that burns instead of vaporizing. Over months that residue is what shortens a Peak Pro chamber's life and what makes a rig taste worse than it did new. A clean drop into the center of the chamber, every time, is the single cheapest thing you can do for how a rig tastes and how long its parts last. The Hot Knife makes that the default.
It also handles cold, hard concentrates that a cold tool chips, and it stops the small daily mess of wiping tools.
What's wrong with it
It's $50 for a dab tool. The battery is small, so it lives on its charger. And the current version's magnetic cable is proprietary; lose it and you're buying another.
Who should buy it
Anyone who owns a Peak, Peak Pro, Proxy, Pivot, or any chamber-style rig, and dabs more than occasionally. It pays for itself in one chamber that lasts longer. Torch-and-banger users get less from it, since a banger is easier to load cold.
Puffco Hot Knife at Cannabox, $50.
Disclosure: VaporizerJudge is published by Cannabox, which sells the products reviewed here. Product links go to Cannabox. Where the best device is one Cannabox doesn't stock, the review says so and doesn't link it.