Expiration date variation


I noticed that there is a variation in expiration dates of Soylent, some being one year, some being 2.
Mine shipped from PA and is for 1 year. I’m curious if the California Soylent lasts for 2 years, or if there’s no correlation.

Reasons for expiration being cut in half from 1.4 to 1.5?

I have 4 weeks from CA and all expire in 2 years.