When we talk about a cup of coffee, a slice of bread, or a bag of flour in French, we use a very consistent structure. English speakers often want to translate the word of literally and then add a word for the or some, which leads to common mistakes.
In French, nouns that represent a container, a portion, or a unit of measurement are followed by just de when specifying their contents. You will see this simple pattern constantly with everyday words like tasse, bouteille, and morceau.
Word list
assiettefA1plateUne assiette de pâtesboîtefA1boxUne boîte de chocolatsbouteillefA1bottleUne bouteille de vinkilomA1kilogramUn kilo de pommeskilogrammemA1kilogramUn kilogramme de farinenombremA1numberUn grand nombre de personnessacmA1bagUn sac de farinetassefA1cupUne tasse de théverremA1glassUn verre d'eaubolmA2bowlUn bol de soupecaissefA2boxUne caisse de pommescasserolefA2potUne casserole d'eaucentainefA2hundredUne centaine de personnescentimètremA2centimeterTrois centimètres de neigecuillèrefA2spoonUne cuillère de mielgrammemA2gramCent grammes de beurrekilomètremA2kilometerDix kilomètres de routelitremA2litreUn litre de laitmarmitefA2potUne marmite de soupemètremA2meterUn mètre de tissumilemA2mileDix miles de routemorceaumA2pieceUn morceau de painpartfA2partUne part de gâteaupiedmA2footSix pieds de neigebouquetmB1bouquetUn bouquet de fleursboutmB1pieceUn bout de papiercorbeillefB1basketUne corbeille de fruitscruchefB1jugUne cruche d'eaudouzainefB1dozenUne douzaine d'œufsgouttefB1dropUne goutte de laitmètre carrémB1square metreCent mètres carrés de terrainpaniermB1basketUn panier de fruitspaquetmB1packageUn paquet de biscuitspichetmB1jugUn pichet de vinpilefB1heapUn tas de feuillesplateaumB1trayUn plateau de fromagesportionfB1partUne part de gâteaupoucemB1inchDeux pouces de neigequantitéfB1quantityUne grande quantité d'eausachetmB1bagUn sachet de bonbonsseaumB1bucketUn seau d'eautasmB1heapUn tas de feuillestonnefB1tonneUne tonne de charbontonneaumB1barrelUn tonneau de vintranchefB1sliceUne tranche de painvasemB1vaseUn vase de fleursamasmB2heapUn amas de ferrailleboîtefB2canUne boîte de thonboîte de conservefB2canUne boîte de conserve de haricotscouchefB2layerUne couche de peinturecuillère à caféfB2teaspoonUne cuillère à café de sucrecuillère à théfB2teaspoonUne cuillère à thé de selflaquefB2puddleUne flaque d'eaugallonmB2gallonUn gallon d'essencegrainmB2speckUn grain de poussièregrappefB2bunchUne grappe de raisinmètre cubemB2cubic metreUn mètre cube de sablemichefB2loafUne miche de painpaquetmB2deckUn paquet de cartespetite cuillèrefB2teaspoonUne petite cuillère de sucrepincéefB2pinchUne pincée de selpoignéefB2handfulUne poignée de rizportionfB2portionUne portion de légumessoucoupefB2saucerUne soucoupe de laittonne métriquefB2tonneUne tonne métrique de blétubemB2tubeUn tube de dentifriceyardmB2yardDix yards de tissubarilmC1barrelUn baril de pétrolechaudronmC1cauldronUn chaudron de soupeconteneurmC1containerUn conteneur de bananescuilleréefC1spoonfulUne cuillerée de sucregorgéefC1gulpUne gorgée d'eaulouchefC1ladleUne louche de soupemonceaumC1heapUn monceau de papiersamphorefC2amphoraUne amphore de vingoussefC2cloveUne gousse d'ail
How it works
The construction is simple. You take your container or quantity word, add de (or d' before a vowel sound), and then immediately state the substance. You do not use definite articles like le, la, or les, nor do you use partitive articles like du or des.
Je voudrais un verre d'eau s'il vous plaît.
(I would like a glass of water please.)
Ajoutez une pincée de sel à la recette.
(Add a pinch of salt to the recipe.)
Containers, Portions, and Measures
Containers come in all shapes and sizes. You might use an assiette, bol, tasse, or verre for a meal. For storing or carrying things, there is the boîte, boîte de conserve, caisse, sac, sachet, panier, corbeille, paquet, tube, or seau. Liquids might be held in a bouteille, cruche, pichet, tonneau, or baril.
Elle prépare un bol de soupe pour le dîner.
(She is preparing a bowl of soup for dinner.)
When eating, you might ask for a bout, morceau, part, portion, or tranche. A bread lover might buy a whole miche.
Qui veut une part de gâteau ?
(Who wants a slice of cake?)
Small amounts include a goutte, grain, pincée, poignée, gorgée, or cuillerée (or simply a cuillère). You can also group things into a bouquet, grappe, tas, or douzaine.
Nous avons besoin d'une douzaine d'œufs pour ce dessert.
(We need a dozen eggs for this dessert.)
Finally, standard measurements follow the exact same rule. You will use just de after litre, kilogramme, kilo, gramme, and tonne.
J'ai acheté un kilo de pommes au marché.
(I bought a kilo of apples at the market.)
Watch out
The most common mistake English speakers make is adding an extra article, such as saying une tasse du café when they simply mean a cup of coffee. The word du means of the or some, so using it changes the meaning.
You should only keep the definite article if the contents are specifically identified, rather than just a generic substance. Compare a standard cup of coffee with a cup of a specific, previously mentioned coffee.
Je bois une tasse du café que tu as préparé ce matin.
(I am drinking a cup of the coffee you made this morning.)
Summary
Whenever you use a container, a portion, or a measurement to express a quantity of something, remember that the linking word is always just de (or d' before a vowel sound). Leave out the definite or partitive article unless you are talking about a very specific, previously mentioned batch of that substance.