Different types of milk, for example, UHT milk, semi-skimmed milk and whole milk, produce different frothing results. Adjust the amount of milk used accordingly. For instance, UHT milk forms more froth than other types of milk. To achieve the best frothing result, semi-skimmed milk is recommended.

Do not put other ingredients (e.g. coffee and sugar) into the jug or the excess sugar may lead to overheating. You may put these ingredients into a cup and pour in hot milk afterwards.