5 Foods Not to Keep in Fridge Over 1 Week

Khaosod•Society•3d ago

Reader Briefing

Storing certain foods in the refrigerator for over seven days increases the risk of bacterial contamination and Aflatoxin poisoning.

•The World Health Organization (WHO) classifies Aflatoxin as a Group 1 carcinogen.
•Aflatoxin is heat-resistant and is not destroyed by cooking at 100 degrees Celsius.
•Certain foods, including pickled vegetables and spices, can develop Aflatoxin and other carcinogens if refrigerated too long.
•A report by Khaosod Online on July 17, 2026, details five types of foods to avoid long-term refrigeration.

•Khaosod Online reported on July 17, 2026, that storing raw and cooked food together for over 7 days can lead to bacterial contamination.
•Aflatoxin is a toxin from fungi in the Aspergillus genus, specifically Aspergillus flavus and Aspergillus parasiticus.
•Aflatoxin directly damages liver cells and can lead to cirrhosis, acute liver failure, and liver cancer.
•Pickled vegetables kept too long in the fridge may see an increase in Nitrite, which can turn into the carcinogen Nitrosamine.
•Green leafy vegetables like kale and morning glory are prone to bruising and rotting within a few days due to low temperatures.
•Tropical fruits such as bananas, mangoes, papayas, and dragon fruits can rot and develop fungal toxins if refrigerated too long.
•Fresh noodles have high starch and moisture and lack preservatives, making them prone to fungal contamination after 2-3 days.
•Dried spices can absorb moisture from condensation when moved in and out of the fridge, leading to Aflatoxin growth.

Full article content is available on the original source.

Khaosod Online Team(ทีมงานข่าวสดออนไลน์)

The team that compiled the report on July 17, 2026.

World Health Organization(องค์การอนามัยโลก)ℹ️

The organization that classifies Aflatoxin as a Group 1 carcinogen.