When you're food shopping in Italy, you'll often need to ask for specific weights of items like cheese or cured meats. A polite and common way to do this is by using the phrase 'Vorrei', which means 'I would like'. For example, to ask for two hundred grams of cheese, you would say: 'Vorrei due etti di formaggio'.

You can also ask for items by the piece or container. For instance, you can ask for 'un chilo di...' for a kilo of something, or 'una bottiglia di...' for a bottle. You just add the item you want after these phrases.