You can find batch no. printed/stamped on the outside of the product package. It is usually a combination of numbers and/or letters.
Test Results

東昇雞扒
東昇雞扒, 生產過程嚴謹, 產品定期檢測,HACCP, ISO9001 及 ISO22000 等食品安全認證,生產過程絕無添加抗生素, 激素及有害金屬。經註冊實驗室及本港大學測試結果: 無添加抗生素, 無激素及無有害金屬 ,有實質測試報告,百份百安心食用。
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Batch No. 2100/03235
Heavy Metal and Toxic Elements
Pass
Hormone Screening
Pass
Antibiotics Drug Screening
Pass