If you have ever ground your own coffee beans, you will know the taste is ten times better (made up stat). Buy why is this? Let’s dig into the science behind it.
It’s all about the chemical compounds in the coffee beans and how they act once released from the bean after being ground. First off, we have the process of oxidation which occurs when the chemicals react with the air – this changes the flavour of the coffee. The longer coffee sits around in it’s ground state the more oxidation occurs, even if you are using a coffee pod machine with sealed pods.
To make a good cup of coffee you need the coffee bean oils to dissolve in the hot water, which is aided by CO2 (carbon dioxide if you have forgotten your school chemistry) in the beans. Once you have ground the beans, you have created a larger surface area for the CO2 to escape; and will continue to deplete over time. H2O (water) in the atmosphere will also start dissolving the oils before you have even started making your coffee. Speed is the essence.
Why Buy a Mini Coffee Grinder?
Taking the above into consideration, ideally you want to grind your coffee just before you make it. A single cup being the best amount – grinding what you need.
Mini coffee grinders are also practical if you are travelling. Yes, I have taken my grinder on holiday, I’m not ashamed to admit it! Experimenting with Turkish super-strength coffee beans in my hotel room was a great experience; for me anyway but maybe not my wife.
Mini Coffee Grinders generally come in the form of manual grinders, similar to pepper grinders. Here are some of the best on the market.
Porlex Mini Hand Coffee Grinder Review
This manual travel coffee Grinder has been imported from Japan and has lovely aesthetics. It’s made of brushed steel and uses a ceramic grinder to mill the coffee beans. The grinder can be adjusted depending on how fine you want your grind; some Turkish coffees require an extra fine grind. The grind is adjusted with a screw underneath the grinder, with 1-12 settings found by rotating clockwise and listening to the clicks.
The Porlex Mini Hand Coffee Grinder will hold 20g of coffee beans.
If you are not going to use this mini coffee mill for travelling purposes, it also comes in a slightly taller version.
Hario Mill Mini Slim Plus Hand Coffee Grinder
The Hario is another mini coffee grinder made in Japan. It’s chunkier than the Porlex model, but will hold slightly more coffee beans; 30g enough for 2 cups of decent sized coffee.
Like the Porlex, the Hario Mill Mini Slim Plus Hand Coffee Grinder has a ceramic grinder which is adjustable from the bottom.
Rhinowares Small Hand Grinder with Adapter for Aeropress Review
If you are an Aeropress lover, then this mini coffee grinder is for you. The Rhinowares mini hand Grinder sits directly into the Aeropress so you can grind your coffee beans and instantly make fresh coffee on the go. It also reduces the oxidation time as the bean chemicals get no time to react with the air.
Like the mini grinders above, the Rhinoware uses tough ceramic burrs to grind the beans consistently. This mini coffee grinder can also be used for grinding spices.
WOT I Mini Coffee Grinder Review
The WOT I mini coffee grinder is a beautiful stainless steel grinder very similar to the grinders above. The main difference with this product is it comes with a nice travel bag, it only has three grind settings though so you cannot go extra-fine.
Uong Coffees Grinder and Maker Review
If you are looking for a dedicated travel coffee maker, you might want to also consider the Uong model which will grind and brew your coffee in one go. The coffee will drip through directly into a 240ml cup which you can then detach and use.
Mini Electric Coffee Grinder
If you are looking for mini coffee grinder only for home use and don’t want to manually grind your coffee beans you could buy the Krups Coffee Mill. This is perfect if you are suffering from arthritis in your fingers and wrist and struggle to manually rotate a mill.
This mini electric coffee grinder by Krups can hold enough beans for 2-3 cups of coffee and grinds them down in a matter of seconds.
You might also like our guide to the best milk frother machines if you love a latte or cappuccino.