Barista School


How to avoid the clogged coffee machine problem?

How to avoid the clogged coffee machine problem?

Cause and prevention of the most common faults in coffee machines. It's a problem you really don't want to deal with in a coffee shop. Yet it's so easy to avoid and save thousands to hundreds of thousands of crowns.


How the right coffee brewing technique reduces milk wastage

How the right coffee brewing technique reduces milk wastage

You know it yourself. Sometimes things go well and sometimes things fall out of your hands. When a barista doesn't have his day, that's when things happen at the bar. No need to cry over spilt milk. Literally. Especially in a rush, it's easy for a barista to tip over milk. Whether it's in a jug or a whole carton. Apart from the mess, it's a financial loss to the cafe.


Blooming or preinfusion: how coffee "blooms" during preparation

Blooming or preinfusion: how coffee "blooms" during preparation

A coffee full of great, balanced taste and aroma. We love it. To make sure that the flavour and aroma is as strong as possible and that we really enjoy our time with coffee, it's important to keep it fresh. The fresher the coffee is, the more it has to offer and the more we enjoy our cup of coffee. At the same time, thanks to the reactions produced by roasting, coffee contains CO2. It is the freshly roasted coffee that contains the most of it. We must therefore also take this property of fresh coffee into account when preparing it.

In fresh coffee, we find many aromas, flavours, antioxidants and also CO2. This is produced when the coffee is roasted and gradually escapes from the coffee. This is, for example, why a bag of freshly roasted coffee is inflated. It is because of the carbon dioxide that is released. This characteristic associated with fresh coffee must also be dealt with when preparing the coffee itself. When pouring the coffee, the release of CO2 is also immediately apparent. The ground coffee begins to gain volume on contact with water and larger or smaller bubbles form on its surface. This expansion of the coffee is called 'blooming' or coffee blooming. Let us now look at why it is important to let coffee bloom when brewing coffee.

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