Sodium tetraborate (borax)

International Numbering System (INS) for Food Additives: 285

Food additives Europe numbers: E285 

Sodium tetraborate, also commonly known as borax, is an interesting case in the world of food additives. Here's why:

Limited Use in Food:

• Historical Use: Borax was once used as a food additive to preserve certain foods like fish and meat [1]. This practice is no longer considered safe and has been banned by most regulatory bodies worldwide.

Safety Concerns:

• Toxicity: Consuming high amounts of borax can be toxic, causing nausea, vomiting, and stomach cramps [2]. Even smaller amounts can be harmful if ingested regularly.

Current Status:

• Not a Permitted Additive: Due to safety concerns, borax is not generally recognized as safe (GRAS) for use in food by regulatory bodies like the US Food and Drug Administration (FDA) [3]. Its use in food production is strictly prohibited.

Industrial Applications:

• Non-food Uses: Borax has numerous industrial applications, including in the manufacturing of detergents, soaps, and some cosmetics [4].

Important Note:

• Accidental Ingestion: While not a food additive, there's a slight possibility of accidental ingestion of borax if it contaminates food during industrial processes or through improper household storage (especially if mistaken for table salt).

Overall:

Sodium tetraborate (borax) is not a safe or approved food additive and should not be present in consumable products. If you're concerned about borax contamination, it's best to contact the food manufacturer or relevant regulatory authorities.