These are also manual citrus juicers. They have an arm on left/right side that you have to pull down to force the juice out of the fruit. The mechanism is quite simple. You put a half-cut fruit on the bottom squeezing part and then use the handle to pull down the top squeezing part onto that forcefully to press the juice out. The arms are mostly made out of metal and on some low-cost models they can break with undue force. They are also known as citrus presses because there is no reaming action involved in it.
Celery will juice just fine, but for greens I use one of those slow juicers, the vertical version. The celery, raspberry, strawberry and things like kiwi come out better on slow juicers. It appears that “one size fits all” idea is only good for T-shirts, so considering one can get slow masticating juicers for much less then they used to cost there is no reason not to have one as well, so you can make nectar out of spinach and celery – it does taste weird but it is quite nutrition.
We were pleasantly surprised at how well the Hamilton Beach stacked up in taste testing, even against pricier cold-press models such as the KitchenAid (which featured sizeable chunks of celery in its juice. Many testers praised the smoothness of the Hamilton’s juice, noting that the Black & Decker and Oster were both grittier. You’ll get less juice and more foam than a top-performer like the Hurom, but the Hamilton Beach offers tasty results and a respectable performance for a much smaller price tag.
Masticating juicers mimic “chewing” fruits and vegetables using augers with sharp metal teeth. They then press the maximum amount of juice from the pulp resulting in high yields and very little foaming or oxidization. This technique allows for easy juicing of leafy greens such as wheatgrass, spinach, and kale. Also known as “slow” or “cold-press” juicers, these models take more time to produce juice but don’t heat it up, which is thought to preserve more nutrients. They tend to be quieter and operate at a low hum. Their stronger motors come at a higher cost but enable additional features like making nut butters, baby food, sorbets, and even pasta. Masticating Juicers cost upwards of $200 and are more of an investment for the serious juicer.
Whereas the Omega J8004 is a commercial-quality machine, the Omega NC800 is designed for household use. When it came to green juice, the output was almost identical. The carrot juice was a different story, though. The NC800 yielded only 12.3 ounces. John Kohler at DiscountJuicers.com said that this machine put out 15 percent more juice than its predecessor, but we found that it actually put out 25 percent less carrot juice than the J8004. The nice feature of this juicer is that it boasts a larger feed tube than its predecessor, which makes prep a little easier.