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Second, because the coffee is too cold. Most milk coffee is between 180-340ml (less 90ml coffee), and single boiler coffee machines often end up pumping froth instead of hot milk. This results in a reduction overall to 45-50° coffee.

Ideally, stream at 100° heats milk to 55-65° keeping the overall coffee cup temperature to over 65°.


And cup capacity is last

Official cup capacity (if you can call it – and it need not fill to the brim) are

  • Espresso/single shot (100ml)
  • Small (280ml)
  • Medium/regular/double shot (400ml)
  • Large/triple shot (500ml).

These roughly equate to 8, 12, and 16-ounce standard cups.


Simply put – the larger the cup size you like, the more coffee grounds you must use. Lower cost machines will use the same amount of coffee grounds and simply double the water volume.

GadgetGuy’s take – there is a lot of tech behind good coffee

Forgive us for ‘dumbing’ this down, but you are not going to read a longer treatise on how to make good coffee.

Remember the five main points

  1. Find a bean/grind that you like
  2. Check for influences like water quality
  3. Make sure coffee is around 90° and milk at 60°
  4. Smaller cups generally have better-tasting coffee
  5. Milk coffee drinkers may need to compromise

If readers want to add their coffee experiences, please use Disqus.