Does table salt have a shelf life? How to choose table salt

We cannot live without salt in our lives. We have to use it every day, otherwise our food will become hard to swallow and tasteless. Does salt have a shelf life? Can it be eaten after it expires? In addition to this, salt has good bactericidal and anti-inflammatory functions, and has nothing to do with iodine. Expired salt can be used for foot bathing, cleaning wounds, bathing, etc. Many times, people don’t know how to choose salt. Let’s communicate and chat together! I hope your life is rich and flavorful.

Contents of this article

1. Does salt have a shelf life? Can it be eaten after it expires?

2. How to choose salt

3. Is table salt sodium chloride?

Does salt have a shelf life? Can it be eaten after it expires?

Table salt has a shelf life, and it is not recommended to be consumed after it expires. Table salt should not be stored for too long, and its shelf life is generally 3-5 years, because iodine and potassium are generally added to table salt. If it is exposed to the air for a long time, the iodine and potassium content in the salt will be insufficient.

Because salt only contains pure sodium chloride, and sodium chloride is very stable, the saltiness will not change even if it is stored for a long time or becomes damp. Therefore, generally speaking, pure salt itself has no shelf life.

Table salt has good bactericidal and anti-inflammatory functions and has nothing to do with iodine. Expired table salt can be used for soaking feet, cleaning wounds, taking a bath, etc.

How to choose salt

You should buy salt in large supermarkets or shopping malls, not in farmers' markets or from small vendors.

When buying salt, you should pay attention to the production date. When buying products, we must pay attention to the production date and shelf life of the products. Of course, the fresher the salt, the better.

Buy salt according to different needs. If you have high blood pressure or heart disease, it is recommended to choose low-sodium salt; people with anemia should choose iron-fortified salt; children and pregnant women should choose zinc-fortified salt.

When buying salt, be careful not to buy bags that are not tightly sealed. When purchasing, we can carefully check whether the bag has cracks.

When buying salt, consumers can pinch the bag. If there are obvious lumps in the bag, do not choose it.

Is table salt sodium chloride?

Table salt and sodium chloride are not the same thing. Sodium chloride is 100% pure, while table salt is basically 87% sodium chloride. Sodium chloride is the main component of table salt. Sodium chloride exists in large quantities in seawater and natural salt lakes. It can be used to produce chlorine, hydrogen, hydrochloric acid, sodium hydroxide, chlorate, hypochlorite, bleaching powder and metallic sodium, etc. It is an important chemical raw material.

It can be used for food seasoning and pickling fish, meat and vegetables, as well as for salting out soap and tanning leather; highly refined sodium chloride can be used to make physiological saline for clinical treatment and physiological experiments, such as sodium loss, water loss, blood loss, etc. Sodium chloride can be produced by concentrating and crystallizing seawater or natural salt lake or salt well water.