All About Coffee!

No, I don’t think so. Fussy, yes... but I’m not the first person to be fussy about making coffee at home! Drinking fresh coffee is a real joy, but drinking stale coffee ain’t and, once exposed to air, coffee goes stale incredibly quickly. Beans typically last only a few days before they are stale and tasteless – bad news at home where only small quantities get used per day.

Even with excellent espresso equipment, it is quite possible to make awful coffee! Here are some tips I have picked up over the past decade or so:

Main Issue #1. ALWAYS buy good quality beans.
- I buy only high altitude-grown Colombian beans, grown close to 2000m altitude in the Sierra Nevada mountains, but any high altitude growing area close to the Equator would be acceptable. High altitude Arabica beans, especially single-source beans, not a blend, are more expensive – growing slowly, crop yields are low, but they have less bitter aftertaste. I find ‘Italian-Blends’, which have Robusta beans mixed with the Arabica, too bitter.
Main Issue #2. ALWAYS store beans in a completely airless environment. Purpose-made coffee-cans or bags are hermetically sealed with one-way valves to allow gases (mostly carbon dioxide) from the roasting process out but no air in. If there is ANY air inside them, the beans oxidize, and quickly go stale despite being inside a sealed container. The major cause of staleness for home users is that beans can’t be used fast enough after opening a bag.
- I buy sealed 1kg bags of beans online, so my order is roasted and delivered within a few days of ordering... much fresher than store-bought beans.
- ...once I crack the seal on a 1kg bag I immediately completely fill two hermetically-sealing coffee-cans (each about 400g). Being brim-full, with no air inside, those cans will stay fairly fresh...
- ...and the 200g left over goes into a plastic zip-lock sandwich bag – the ‘slider’ type of bag, not the finger-pinch type. To make coffee, I scoop beans from the sandwich bag, then roll up the bag to squeeze air out before resealing it. When I open a can, that fills two zip-lock bags. This can-&-bag technique is simple, but it works!!
Main Issue #3. ALWAYS freshly-grind beans immediately before making coffee.
- Never bulk-grind beans. When exposed to air, ground beans go stale in only a few hours. Immediately before making coffee, I grind only enough for what I need. Any small residue is discarded – it will be stale before I need to make my next coffee.
- Get the grind granule size right! The recommended grind for an espresso machine is ‘visible granules as fine as table-salt’. But this probably won’t be at the ‘Espresso’ setting on the grinder’s adjustment scale! Once you get the grind right, leave the grinder on that setting. Extracting flavor from these small granules using hot water under pressure is why Espresso coffee tastes stronger than other types – it’s a very efficient method.






This is known as ‘Grind Retention’ With every scoop I was getting some stale grounds from the previous scoop! So now my coffee-making ritual includes two extra steps: after grinding, I firmly pat the hopper lid to dislodge grounds still hanging in the conical grinder burrs, then tap the whole grinder onto the bench-top a few times to make sure that ALL the grounds fall out, and there are none hanging in the machine to pollute my next cup of liquid gold. Yes, that’s being fussy, but it’s a simple step taking an extra two seconds. So I reckon my coffee now tastes a tiny bit fresher...



- Officially, a single-shot of coffee is 30ml – the size of a ‘shot glass’, although most domestic espresso machines deliver a slightly larger shot of about 35-40ml. When it first emerges from the filter it is rich, creamy, honey-colored and sweet. Beautiful stuff. By the time a ‘shot’ has been poured, though, the goodness of the grounds has then been extracted, and you can then see the output stream change color again... it quickly turns into grey, toxic swamp-water from the Black Lagoon, so it’s essential to stop pouring well before it reaches that stage. Some espresso machines use a fluid-volume measurement method to determine the strength of a single- or a double-shot espresso. My machine uses a timing method. A single scoop of beans, ground, fills a single-shot filter, and I give that a 10-12-second pour to make a single-shot coffee. For a double-shot, it’s two scoops of beans in a bigger filter and a 20-second pour.
- It helps that, living in semi-rural Maleny, I use filtered rain-water to make my coffee – my tap-water doesn’t taste like the local community swimming pool.
- Lastly, cup size is important.
- For a short black, a 2½oz ( 75ml ) “Demitasse” cup – sometimes called a Piccolo, although this is the volume, not the cup;
- For a long black, ‘Americano’*, or ‘Portuguese macchiato’**, a 3½-4oz ( 100-120ml ) “Alto” cup;
- For a cappuccino, latté, ‘Italian macchiato’ or mocha, a 6oz ( 175ml ) “Grande” cup***. I don’t use those pretentious latté glasses, mostly because Americans prefer weaker coffee, and that means that the available latté glasses are just too bloody big – it’s hard to find a 6oz. size... and the latté tastes the same in a cup anyway.
• While on that subject, many Australians say that they prefer a cappuccino, but they like lots of milk, so what they actually prefer is a latté. That’s the main difference – a cappuccino has ¼-cup milk foamed to about 3 times that volume, while a latté has a third-cup, but foamed to only about twice that volume. A ‘Cappullatté’, perhaps? - For a Mug of coffee of any type, but which still retains a genuine espresso strength, an 8oz ( 250ml ) mug using the double-shot filter is about as large as I can go. If you like your coffee in a bucket, go to a café – you could ask them to serve your food in a trough, too.

* As far as I can figure, the only difference between a European Long Black and an ‘Americano’ is that Europeans pour the water first, then add the coffee shot, to ‘preserve the crema’ – Americans pour the coffee shot first, then top up with water. I prefer to use the Americano method, because the hot water effectively stirs the coffee, but I still add only enough to fill an Alto cup – not a bucket like Americans prefer, and the crema is still quite good.
** The Italian word ‘macchiato’ means ‘smear’ or ‘stain’, and was originally used throughout Europe to denote a long black coffee with a small smear of milk. When the first machines for foaming milk appeared during the 1980s, though – but only in Italy – it changed to mean the complete opposite: a cup of foamed milk with a shot of coffee poured into it to make a black smear in the white foam. Italians now use the term ‘Portuguese Macchiato’ for a ‘black with a smear of white’. In the USA they adopted the Italian ‘white with a smear of black’ version of macchiato... but super-sized ( of course! ) into a large latté glass.
*** In Europe the Alto and Grande standard coffee cups are slightly smaller than the sizes I use. I hear them criticized as ‘drinking from thimbles’ but you won’t get a true espresso taste from a larger cup because the actual shot of coffee is only ±30ml, or ±60ml for a double-shot. Many people – certainly a majority in the USA/Canada, and now a growing minority in Australia, too – prefer huge mugs ( 10-16oz – 310-500ml ) even though they just get piddly-weak coffee-tinted milk or water. But that’s what they seem to prefer...
Yeccch!

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