1. Online shopping platform query: authorized stores of Blue River also sell products on some online shopping platforms, such as Tmall, JD.COM, Suning.cn, etc. You can search for products of Blue River on these platforms, check the store information of manufacturers and determine whether they are authorized stores of Blue River.

2. Customer service consultation: If you can't find the authorized store of Blue River through official website or online shopping platform, you can consult the customer service staff about the specific location and information of the authorized store through official customer service telephone or online customer service consultation channels.