From Mexico. If you can avoid eating these salty treats ‘as is’ with beer, you will have opportunity to enjoy them in all sorts of recipes. These Mexican shrimp are blanched and salted before they are dried, so they are softer than other dried shrimp. Still, take the time to soak them for 15 minutes or so, and rinse well before using. Store any leftover dried shrimp tightly sealed in your refrigerator for up to 6 weeks.