The salt taste is a salty taste.

塩味 specifically refers to the saltiness found in foods or drinks. It's commonly used in cooking to describe a dish's flavor profile or on food packaging to indicate that the item has a salty flavor.

This uses kun'yomi readings, which you've seen with the vocab words 塩 and 味. Combine them and you have yourself しおあじ.

This can also be read with on'yomi, and both しおあじ and えんみ can refer to salty flavor profiles. Traditionally, えんみ was more formal and reserved for culinary arts and cooking shows, but it's catching on with the younger crowd and popping up more often in everyday conversation about food. For something like salt-flavored potato chips, though, it's always しおあじ.