The "Ultrasonic Chef's Knife," specifically the C-200 model by Seattle Ultrasonics, is the world's first ultrasonic chef's knife designed for home cooks. The knife is the brainchild of chef Scott Heimendinger. It looks and feels like a regular chef's knife but has a hidden feature: it uses ultrasonic vibrations to make cutting easier. With the push of a button, the blade vibrates at over 30,000 or 40,000 times per second, which cannot be seen, heard, or felt, creating a "nonstick effect". This reduces friction and allows the knife to glide through food with less force, making cleaner cuts and preventing food from sticking. The company claims it reduces cutting effort by up to 50%.
The C-200 features an 8-inch blade made from Japanese AUS-10 steel. It has a removable, rechargeable battery pack that charges via USB-C, and Seattle Ultrasonics offers an optional wireless charging tile. The knife is also IP65-rated for water resistance, allowing it to be hand-washed. Originally pre-ordered for $399 in the US and $529 in Canada, with delivery expected in January 2026, it appears to be currently available for preorder from Seattle Ultrasonics. Alternative ultrasonic kitchen knives are available from 369Sonic, with prices ranging from $355.00 to $583.00.