1. Biometric characteristics:
Octopus is a mollusk and belongs to invertebrates. It has eight long tentacles, each with many suckers for catching prey.
Squid is also a mollusk, belonging to invertebrates, but usually only two long tentacles and six short tentacles. Squid tentacles also have sucker, but relatively few.
2. Appearance difference:
Octopus usually has a thick body, uniform tentacles and no obvious membrane between tentacles.
Squid's body is usually slender, with two long tentacles very obvious and a film in the middle, which looks more like an elegant shape.
3. How to eat:
Octopus is a common ingredient, and it is usually necessary to remove internal organs and suckers before cooking. It can be roasted, boiled, fried and stewed to make various delicacies, such as octopus roast and octopus rice.
Squid is also a popular food, usually used after removing internal organs and shells. Squid can be made into fried squid rings, caviar, squid noodles and other delicacies.
4. Cooking purpose:
Octopus is usually tender and smooth, suitable for making all kinds of sushi, sashimi, barbecue and other foods.
Squid meat is slightly chewy and suitable for fried food, pasta and seafood salad.
To sum up, there are obvious differences between octopus and squid in biological characteristics, appearance, eating method and cooking purpose. Understanding their differences is helpful to choose suitable ingredients and try different food preparation methods.