Perhaps surprisingly, cold-press is also a poor source of fibre, as most of the healthy pulp is left behind in the press. As well as being essential for a healthy digestive system, fibre is also responsible for that ‘full’ feeling you get after eating. Without it, you’ll need to drink more juice to feel satisfied, and because fruit juice is also high in sugar, this could lead to raised blood sugar and possible weight gain.
Cold press, then, is not suitable as a meal replacement, but what of the central claim, that the cold press method retains more nutrients? Unfortunately, there isn’t really any evidence for this, with studies showing that juice from cold press and centrifugal juicers - the sort you likely have at home - were similar in terms of nutritional quality.
But it’s not all bad news. Juices are still a great way to top up your nutrient levels when used as part of a balanced diet. They are an easy, portable way of making sure you get enough fruit and vegetables, even when you’re on the go. And there is evidence that a regular dose of mixed juice - made from fruit and vegetables - increases your levels of a whole host of vitamins, minerals and antioxidants.
If you want to try making your own healthy juice at home, check out this guide to making cold pressed juice from Taste of Home. It’s simple and easy to follow, and you don’t even need to buy a mixer.
There are cold press machines available to home cooks, however. The world’s first, called the Juicero, was released in 2016 and could press your fruit and veg with a force of 3600kg, or 8000lbs.