Shape: after opening the package, it still maintains its original shape, without oil leakage, and the cream with smooth surface is of good quality; If it is deformed, and the oil overflows, the surface is uneven, inclined and sunken around, it is an inferior cream.

Color: High-quality cream is transparent light yellow. Otherwise, it's a bad cream.

Smell: High-quality cream has a special fragrance. If it tastes sour and stinks, it is bad cream.

Smoothness: when cutting high-quality cream with a knife, the section is smooth and does not produce water droplets. Otherwise, it's a bad cream.

Temperature: cream must be kept in refrigeration equipment, and the suitable temperature is -5~5 degrees Celsius. Therefore, when purchasing, we should check whether the temperature of refrigerated goods cabinets and other refrigerated equipment meets the storage conditions below 10 degrees Celsius.

Taste: high-quality cream can be dissolved in the mouth, not rough; Otherwise, it's a bad cream.

Date: According to the production date, the general cream is below 10 degrees Celsius, and the taste will not change within 6 months. (article source: food guide)