About PURE
David Feinberg
David Feinberg has designed and made products since he was 14 years old. His work as a designer and engineer has taken him from textiles to stone to metal, from his mother's Singer sewing machine to a British lathe and a Swiss milling machine, and onto factory floors in this country and around the world. He lives in Seattle on a one-acre urban farm with goats, chickens and bees, and he is an avid beekeeper.
A better two-stage juicer
David saw his first two-stage juicer in 1978. In 2011 he began rebuilding these machines, and he saw that their design had stayed almost the same for close to 50 years. He asked himself if he could make a better one. He founded PURE in 2014, and in 2016 PURE crowdfunded and introduced the PURE Juicer, a true two-stage cold-press juicer with a grinder and a separate hydraulic press. The first production order was for 200 juicers.
Bench built and handmade
The PURE Juicer was hand-made in small batches, to David's specifications. Some of the key parts took three to six months to make. The cutter, press plate and feed chute were lost-wax (investment) cast in stainless steel. A wax original was dipped three times in ceramic slurry, dried for 30 days, then molten stainless steel was poured into the mold displacing of the (lost) wax. A PURE cutter needs 30 more steps of machining, drilling, boring, polishing and sharpening. The PURE motor is built to PURE's torque specification with a #316 stainless steel shaft. The chassis was die-cast aluminum alloy. The juice tray was pressed through a series of forming dies, then polished and laser etched.
Every part that touched the produce, except the pusher, was food-grade stainless steel. Each juicer was inspected for electrical safety, pressure, cosmetics, fit and finish, and the same core team assembled PURE Juicers from 2016 until the last one rolled off the line.
The small parts got the same care: a patented offset feed tube with a twist-and-lock mount, a pusher shaped to match its curve of the cutter, and press cloths that David designed, utilizing his background in textiles. Even the wax on the maple pusher is a blend of mineral oil and beeswax from David's bee hives.
The same approach, in a jar
PURE's customers often asked how best to store their fresh juice. Standard jar lids bend and deform under high vacuum, so PURE designed its own mason jar vacuum system. The result is the MVP, short for "Most Vacuum Possible." It is a hand pump with a die-cast aluminum leaf handle, a stainless steel pushrod and no breakable plastic parts, used with triple-thick stainless steel lids. It pulls 80–85 kPa of vacuum in 7–10 strokes, about six seconds, with no batteries and no motor, and it works with the wide-mouth mason jars you already own. PURE launched the MVP on Indiegogo in August 2024, and 442 backers funded $58,299.
Made to last
PURE no longer makes juicers, but it still carries parts for the PURE Juicers already in people's kitchens. The things David builds now are smaller, but they are made the same way: with chosen materials, custom tooling, and parts designed to last.
Read more: The PURE Juicer, Bench Built and Handmade, Under the Hood of the PURE Juicer and The Story Behind PURE Juicer Press Cloths and Bags.