Undeclared allergen (sulphur dioxide) found in prepackaged dried mushroom sample

Issue Date 30.12.2021
Source of Information

The Centre for Food Safety (CFS)

Food Product

Prepackaged dried mushroom

Product Name and Description

Product name: 特選厚花菇 (Not available in English)

Brand: 樓上 (Not available in English)

Place of origin: China

Net weight: 605 grams

Distributor: 僑陽陸海產有限公司 (Not available in English)

Best-before date: October 15, 2022

Reason For Issuing Alert
  • When following up on an earlier relevant incident, the CFS collected the above-mentioned dried mushroom from a grocery store in Tung Chung for testing. The test result showed that the sample contained sulphur dioxide. However, the name of the additive was not declared on the food label.
  • Sulphur dioxide is a preservative which can be used in a variety of foods including dried vegetables, dried fruits, pickled vegetables and salted fish products. Sulphur dioxide is water soluble, and most of it can be removed through washing and cooking. However, susceptible individuals who are allergic to this preservative may experience breathing difficulties, headache and nausea after consumption.
Action Taken by the Centre for Food Safety
  • The CFS has informed the vendor concerned of the irregularities, and instructed the vendor to stop sale and remove from shelves the affected batches of the product. The distributor has initiated a recall according to the CFS' instructions.
  • The CFS will alert the trade, continue to follow up on the incident and take appropriate action. Investigation is ongoing.
Advice to the Trade

Stop using or selling the affected batches of the product immediately if they possess it

Advice to Consumers

Should not consume the affected batches of the product

Further Information

The CFS press release

Members of the public may call hotline of the concerned distributor at 2300 1800 during office hours for enquiries about the recall.

Centre for Food Safety
Food and Environmental Hygiene Department