If you have a bean to cup coffee machine, or any sort of filter coffee machine, you’ll probably be familiar with the used coffee grounds that need disposing of now and then. The next time you’re about to bin your old used coffee grounds, consider an alternative destination for them.
Clever gardeners might suggest recycling our nitrogen-rich used grounds as a sort of mulch or compost to nurture plants and flowers, or as a deterrent for slugs that would otherwise be snacking on your vegetable patch.
However, here’s a new use to make people sit up and take notice.
New research has found that used coffee grounds can be recycled to produce a new kind of alcohol. Researchers at the University of Minho, Portugal, used the sort of fermentation process traditionally utilised in brewing spirits like whiskey and rum, but simply substituted the usual ingredients of wheat and molasses for spent coffee grounds.
The grounds were heated in water at 163°C for 45 minutes, before the liquid was separated off and left to ferment upon the addition of sugar and yeast. Concentrating a sample produced a higher alcohol content, so that the end result was a potent 40 % ethanol.
When sampled for taste by 8 testers, it was concluded that although the brew had a coffee-like aroma and was deemed drinkable, the after-taste was ‘bitter and pungent’. Those excited by the prospect of an authentic coffee-flavoured spirit complete with naturally occurring caffeine might be disappointed to hear that the fermentation process leaves the concoction all but decaffeinated. On the plus side, taste testers suggested that the flavours of the spirit may improve if allowed to age.
Bean to cup coffee machines
Whether or not the idea of this alcoholic version appeals to you, many coffee lovers would agree it can be no match for the original. Warming and aromatic, coffee brewed straight from the bean is available at the touch of a button, if you decide to rent or buy one of our bean to cup machines.
Buy or rent a machine
Renting a machine is easily arranged and costs start at just £2 a day. Our Rheavendors range features the Cino Pronto EC and Cino XS Grande, which both offer the espresso, cappuccino, latte, latte macchiato and mochaccino, as well as hot water and hot chocolate. These attractive and simple machines will suit all manner of workplace, practically and aesthetically. To choose between them, consider the drinks volume you require. The Pronto EC makes 85 cups per day, while the XS Grande will yield 150.
Office coffee machines
Any size office will benefit from the ease of a bean to cup machine. The aforementioned Cino range use an integrated modem, which combined with an internet connection means that any servicing of your machine can take place remotely.
For a busier office, you can rent or buy the Swiss Bellinzona, which provides up to 240 cups an hour. This model features a slightly different range of drinks, being espresso, cappuccino, latte, latte macchiato, americano and chocolate, as well as hot water and hot milk, again all at the touch of a button.
To see our complete range of bean to cup coffee machines, please click here.