Basically, things that do not go "off" or grow mold or need to be kept in the refrigerator.
Foods can be classified into three main categories based on perishability: non-perishable foods (e.g. dried beans, grains), semi-perishable foods (e.g. fresh produce, bread), and perishable foods (e.g. dairy products, meats). Perishable foods are the most vulnerable to spoilage and require proper storage and handling to prevent foodborne illness.
foods that are high in moisture and in fat are more likely to be perishable
Because some foods have natural preservative and never go off (such as honey) while others don't have that and react with the air or what the air contains (such as apples they react with the oxygen in the air.
Salt is non perishable.
Non-Perishable foods are things such as Canned products, Sugar, Spices, All types of pasta. Almost all dried products are non-perishable as food-spoilage bacteria (like most bacteria) requires moisture to thrive.
Canned good and non perishable items tuna, corn, canned peaches, peas
Ketchup is a non perishable food item
Onions are perishable produce.
Perishable foods are foods that are high in moisture and high in fat content. These conditions allow bacterial growth to manifest quickly.
Most foods that are perishable need to be stored in a refrigerator. Perishable foods spoil faster if they are not refrigerated.
perishable foods
fruits