Classification difference: garlic, belongs to the lily family, genus onion (onion subfamily); onion, angiosperm, monocotyledon, asparagus, onion family, genus onion. Taste difference: onion, with a spicy flavor, slightly sweet, with characteristic aroma; garlic, with a stronger pungent flavor, with characteristic aroma, sweetened by heat flavor. Difference: onion in the cooking process in the deodorization, deodorization, aroma effect; and garlic strong irritation can tighten the taste of cooking, so that the taste of cooking better, but also can be sterilized.

1, classification differences: garlic, belonging to the lily family, genus Allium (Onion subfamily); onions, angiosperms, monocotyledonous plants, asparagus, Onionaceae, genus Allium.

2, taste difference: onion, with a pungent flavor, slightly sweet taste, with characteristic aroma; garlic, with a thicker pungent flavor, with characteristic aroma, sweetened by the heat flavor.

3, the role of the difference: onions in the cooking process in the deodorization, deodorization, aroma effect; and garlic strong irritation can tighten the taste of cooking, so that the taste of cooking is better, but also can be sterilized.