The authenticity of the Starbucks Lucky Cat Thermos Cup can be identified through the following methods.

1. There will be a circle of English letters at the bottom of the genuine Starbucks cup, which prints the cup's product information, instructions for use, company copyright, etc., such as the English logo.

2. At the bottom of all Starbucks cups, there will be a circle of English letters MadeinChinaDoNotMicroWave on the edge. The English letters will be slightly different depending on the cup.

3. After a circle of letters, the capacity of the cup will definitely be marked. Starbucks cups only have four capacities. There are two rows of STARBUCKSCOFFEE (must be capitalized) in the middle of the bottom. The Kraken logo will not be printed on the bottom.