Depending on the number of Centrifugal disc finishing equipment Factory come with a suitable number of steam wands for frothing milk and perhaps a hot water arms for dispensing hot water for making tea.
Since a high percentage of drinks served will likely contain frothed milk it will be a good investment of your time to master the technique of frothing milk. It takes practice and some skill, but once learned it will enable you to produce fantastic looking and tasting drinks and allows you to train others.
It is possible to buy third party semi-automatic milk frothers that attach to the steam arm of the espresso machine to facilitate easier frothing but we feel that these should be avoided (though many might disagree). Add-on milk frothers can be clumsy and not function to a consistent basis as well taking some of the charm and sophistication out of the coffee producing process.
Whilst a traditional espresso machine looks fabulous and attracts attention, the sight of a plastic milk frother attached to the machine can have be detrimental!
Traditional espresso machines are big business. There are now a large number of manufacturers of such machines and the number is growing all the time.
It is best to choose a manufacture that they have been producing espresso machines for a number of years and are familiar with the industry.
Only consider plumbed models as some single group machines are available with an integral water tank but these can cause problems with 'stale' water.
Make sure the machine is made of high quality metal and not hardened plastic. Smaller, cheaper machines are available but should really be restricted to the domestic kitchen and never used in a commercial environment. You may make great savings initially but unless you are only serving a few cups a day you will very likely wish you had bought a more durable model in quick time.
To operate a commercial espresso machine will require training. Most reputable supply companies will provide onsite training to all relevant staff when the machine is installed and commissioned.