Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE product_characteristics (product_id VARCHAR)
TABLE: CREATE TABLE products (product_id VARCHAR, product_name VARCHAR)

### Question ###
How many characteristics does the product named "sesame" have?

### Accurate SQL ###

SELECT COUNT(*) FROM products AS t1 JOIN product_characteristics AS t2 ON t1.product_id = t2.product_id WHERE t1.product_name = "sesame"