The Slowstar has a proprietary “Duoblade” auger, which has two cutting edges to chop and crush more with each rotation than single edges can. The motor uses a three-gear system that allows it to turn slowly but with plenty of torque; in our testing, we found that this translates to low-temperature juice with maximum yields from even low-moisture greens like kale.
Lemons and oranges should be peeled unless one wants to consume all those antifungal sprays that are sprayed on many citrus prior to storage. Even DIY home grown organic peel with no chemicals will spoil the taste just because citrus oil in peels is too strong for consumption in quantities – this is why some supermarket citrus juices have this wonderful smell combined with some bitter aftertaste. Citrus oil is good to flavour cakes and treat pimples, but not for drinking.