Food names depend on what is actually in the picture
The food unit includes 水, 苹果, 米饭, 香蕉, 面包, 鸡蛋, 牛奶, 茶, 面条 and 米. They cover drinks, fruit, prepared foods and an ingredient. That mixture is useful because English labels can hide distinctions that matter in Chinese. Rice is the clearest example: the grains before cooking and the rice served in a bowl normally have different names. Another distinction concerns quantities. An apple is an individual fruit, while water is a substance whose amount needs a container or another measure. Look at the pictured form of the food before choosing the noun. Then read the example to see whether the speaker is naming it, drinking it, eating it or asking for an amount.
米 and 米饭 distinguish an ingredient from cooked rice
米, mǐ, refers here to uncooked rice. 米饭, mǐfàn, refers to cooked rice, often the plain rice served alongside other dishes. A bowl of white rice is a common example, but whiteness is not a necessary part of the word's meaning: cooked brown rice can also be described as 米饭. When buying dry rice for the kitchen, 米 or a more specific term such as 大米 fits the ingredient. When asking for rice with dinner, 米饭 is the useful basic term. 饭 on its own can also mean a meal, as in 吃饭. This wider use is why translating every occurrence of 饭 simply as rice can produce a misleading English sentence.
Use a container to say how much water or milk
水 is a complete one-character word, but it normally names a substance rather than a countable object. To ask for a quantity, use a phrase such as 一杯水 or 两瓶水. 牛奶 and 茶 work similarly with suitable containers. 杯 describes a cupful and 瓶 a bottleful; neither by itself specifies an exact volume in milliliters. For an exact measurement, add the relevant unit and number. 苹果 and 鸡蛋, in contrast, are easily counted as individual items, commonly with 个. Chinese still uses a classifier in these counting phrases, so the distinction is not that countable fruit skips the classifier. The difference concerns what kind of quantity you are describing.
Choose the eating or drinking verb for the sentence
吃 commonly appears with solid foods: 吃苹果, 吃面包 and 吃米饭 are straightforward combinations. 喝 is the usual starting verb for drinks, giving 喝水, 喝牛奶 and 喝茶. A noun alone does not tell you which verb will appear in every possible regional expression, but these combinations are dependable beginner examples. 想 adds the idea of wanting to do something, as in 我想喝水. 要 can request or state a desired item, as in 我要一碗米饭. Adding 请 can make a request more courteous. A bare command and a request with context do not have the same social effect, so practise the complete sentence rather than memorizing only a verb and an English translation.
A food word does not always describe one individual piece
面包 means bread and can refer to the food generally; the word itself does not guarantee one loaf, bun or slice. 一片面包 specifies a slice, while a shop may count an individual bread item with a different classifier depending on its shape. 面条 refers to noodles, often understood collectively. 一碗面条 counts a bowl of noodles, while 一根面条 singles out one strand. 茶 can refer to tea as a drink or to tea more broadly; 茶叶 makes the leaves explicit when that distinction matters. These examples show why a picture caption cannot provide every serving size. Use the noun to identify the food and a classifier or container to identify the amount you intend.
Build a small order with the right amount
Try assembling an order from a drink, a staple and a piece of fruit. For example, ask for a cup of tea, a bowl of rice and an apple. Notice that the Chinese nouns do not acquire English plural endings when the amounts change. 两个苹果 still uses 苹果, while 两碗米饭 changes the number of bowls rather than the form of 米饭. Then compare a shopping sentence about 米 with a dinner sentence about 米饭. Keep the two pictures separate as you read the examples aloud. When describing breakfast, choose the items you actually see rather than assuming that every food has a fixed place in a meal. The same vocabulary can describe many different eating habits. The example about rinsing 米 refers to dry grains being prepared for cooking. It therefore reinforces the ingredient meaning directly, rather than using the same English rice label for both pictures without explaining the difference.