is not "Garum" always salted ? (I anwer "garum gusto")
'Garum' can refer to any type of Roman-era fish sauce - usually salted but not always so. Perhaps this is especially salty garum.
Gusto means i enjoy tasting it, or that i taste it to check weather i like it or not?
Just that you taste/try it, probar in Spanish. Gustar in Spanish would be placere in Latin. Me gusta = mihi placet.