Machine à café vs. cafetière

The French words 'machine à café' and 'cafetière' both refer to appliances used for making coffee, but they encompass a range of different types of coffee makers. Understanding the nuances between these terms can help clarify the type of coffee appliance being referred to in different contexts.

Machine à café

This term generally refers to larger and more complex coffee machines, often electric, that may have multiple functions such as grinding beans, brewing espresso, frothing milk, or even making different types of coffee beverages.
J'ai acheté une machine à café qui peut faire des espressos et des cappuccinos.
(I bought a coffee machine that can make espressos and cappuccinos.)
La machine à café du bureau est en panne, donc pas de café ce matin.
(The office coffee machine is broken, so no coffee this morning.)
Les machines à café automatiques sont très pratiques pour les amateurs de café.
(Automatic coffee machines are very convenient for coffee enthusiasts.)

Cafetière

'Cafetière' usually refers to simpler devices such as manual drip coffee makers or French presses. These are typically smaller units that might not require electricity to operate and function by steeping ground coffee in hot water and then filtering it.
Je préfère utiliser une cafetière à piston pour préparer mon café le matin.
(I prefer using a French press to make my coffee in the morning.)
Ma cafetière électrique me sert tous les jours à préparer du café filtre.
(My electric drip coffeemaker is used every day to prepare filter coffee.)
Avant, j'utilisais une cafetière italienne sur la cuisinière pour faire mon espresso.
(Previously, I used an Italian Moka pot on the stove to make my espresso.)

Summary

'Machine à café' and 'cafetière' are terms used for different types of coffee-making appliances with 'machine à café' being used for larger, often more sophisticated and electrically powered machines capable of making a variety of coffees. In contrast, 'cafetière' tends to refer to simpler devices such as manual drip brewers or French presses. The distinction is important when shopping for or discussing the appropriate equipment for one's desired method of brewing coffee.