An efficient design allows the Slowstar to crank out a high volume of juice within a small footprint of 6½ by 8 inches. The feed-tube opening is a relatively wide 2½ by 1½ inches—wider than the 1½-inch chute on the Omega J8004—which helps reduce the amount of vegetable prep you’ll have to do beforehand. The solid waste collects cleanly in a waste container that’s included. The Slowstar has a reverse button in the back in case you need to dislodge stuck vegetable matter, but I never needed to use it.
John Kohler and Matt Shook both recommended that we include a few different vertical single-auger juicers to test. All of the vertical and horizontal single-auger models we brought in to test promised low speeds, minimal oxidation, and high juice yields. We also brought in two centrifugal-style juicers to compare yield and quality. These didn’t do well in our tests and ultimately we recommend only single-auger juicers.
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Great machine! This is our first juicer so we really didn’t know what we were getting into but I’m very pleased with this machine. It’s fast not too loud easy to Clean especially if you have the cleaning brushes which I think is a must have! Just one tip don’t over do it, it needs to rest intermittently and if it sounds like it’s slowing down do a mid juice cleaning so that the pulp doesn’t overflow.
We got more juice out of the Kuvings Centrifugal Juicer NJ-9500UB than any other machine we tested. All that remained was a small amount of pulp that felt relatively dry to the touch. The Kuvings did an excellent job extracting juice from hard and soft produce in virtually all our tests. Since getting juice is the whole point of a juicer, the Kuvings got top marks.
Low foam production: The foam that accumulates on top of your juice is a good indicator of how much air has been whipped into your juice by the machine, and more air exposure equals more oxidation. Oxidation is a controversial topic. As Harold McGee explains in On Food and Cooking: The Science and Lore of the Kitchen, “Because juicing mixes together the contents of living cells, including active enzymes and various reactive and oxygen-sensitive substances, fresh juices are unstable and change rapidly.” So the prevailing theory among juicers is that if less oxygen is whipped into a juice, the valuable nutrients and enzymes remain more intact. But as Kohler told us, there’s not much peer-reviewed research on how or if oxidation affects the nutrient contents of your juice. “It’s all manufacturers’ data for the most part,” he said, “which I take with a grain of salt.” That said, we still prioritized machines that produced less foam, because at the very least, oxidation can cause your green juice to turn brown, and may lead to some muddy, off flavors.

Juicers are expensive machines that take up a lot of space on a counter, but they’re a great investment for juice enthusiasts. With a juicer, you can offset the cost of boutique juice by making it at home—if you drink green juice five times a week, the savings can add up to hundreds of dollars over the course of a year. Because vegetables are pricey in the quantities needed for juicing, an efficient extractor will make more juice for your money. If the yield on your current juicer isn’t very high, or you have a model geared more toward soft fruit rather than tough greens, we recommend upgrading.
Choose from five speed settings by turning the control dial with the blue LED light ring, then watch as freshly extracted juice flows effortlessly from the anti-drip adjustable flow spout. The thoughtfully designed appliance also provides an exclusive easy unlock and lift system, a filter basket specially designed to reduce foam, and a high-quality design that runs quietly--no need to wake up the whole family when getting an early start on the day.

The Hurom comes with a lidded pitcher for collecting juice, but its slow-turning auger produced so little splatter that we also had no problem putting our own glass directly under the juice spout. Clean juicing makes for means you’re not beholden to the Hurom’s pitcher, making it easier to juice straight into your to-go cup and reducing counter clean-up. (When we tried this with the Juiceman, we ended up with a foot-wide splatter radius.)