There are no shortcuts to producing great hot beverages, and as we showed you in previous blogs - 6 reasons why a perfect espresso is good for business and how to achieve it - (Part 1) & 6 reasons why a perfect espresso is good for business and how to achieve it – (Part 2) producing the perfect espresso is important and without water filtration as part of your machine maintenance creating espressos and perfecting beautifully textured milk cannot be achieved.
What is the Water Standard?
The coffee and tea industry can use guidelines from the SCAA/SCAE and this outlines the acceptable range of mineral content, alkalinity, total dissolved solids (TDS), pH value, calcium/sodium content and odour/colour qualities that are recommended for brewing (speciality) coffee and other hot beverages.
A recent research project in 2015 funded by the SCAE at the Centre for Analytical & Physical Chemistry at Zurich University how the quality of water can impact on a coffees flavour profile.
In the research project the coffee was evaluated against the following attributes:
The conclusion of the research was of all the attributes evaluated: flavour, acidity, balance and overall scoring were most significantly affected. The water with the lowest value for hardness and alkalinity consistently gave the highest scores – suggesting that this type of water leads to a better cup quality overall.
Prof. Chahan Yeretzian, Chairman of the SCAE Research Committee and Head of the Centre for Analytical & Physical Chemistry says that the research underlines how important water type is for the coffee (sic beverage) industry and its role in ensuring that (speciality) coffee can achieve its full potential when complemented by a range of other factors.
What type of Filter should I buy?
This will depend on where your business is based as mains water in different parts of the country tastes different because it contains different minerals and this can be shown as colour or taste
In some areas water companies add chlorine to the water and it is possible to taste the chlorine; however this is harmless, but most people prefer the chlorine removed which can be achieved by passing the water through a carbon filter.
When considering a filter consider all of the following
- Ensure you fit the correct filter for the volume of beverages produced
- Monitor & change the filter on a regular basis
- Use a recognised brand
- Have the installation completed by a competent and trained engineer
This can ensure
- The elimination of limescale and 100% water quality guaranteed
- Increased quality of hot beverages produced
- Reduced engineering costs
Added to this, is the quality of the water used to produce your espresso coffees and teas. It is easy to overlook the benefits that using an on-line water filter in your business too.
One final, but vital topic is the maintenance of your water treatment. To get consistent results and solve the problems that your water is causing means you must regularly maintain your systems. Ensure you fully understand how often to replace the consumable parts.
When plumbing a commercial machine with a filter there are a number of musts. Always use WRAS (Water regulation advisory scheme: (www.wras.co.uk/) fittings and always fit a backflow prevention device to stop water going back into the supply from the machine. Always change the filter as per the manufacturer’s guidelines.
Supplying Artisan coffees, teas, hot chocolate, espresso and bean-to-cup machines in Berkshire, Buckinghamshire, Hampshire, Oxfordshire, Surrey and Wiltshire