{"id":476,"date":"2026-10-01T07:05:28","date_gmt":"2026-09-30T22:05:28","guid":{"rendered":"https:\/\/magazine.samsammulsan.com\/glossary\/what-are-cooked-oysters-and-how-do-they-differ-from-raw-and-raw-frozen-oysters\/"},"modified":"2026-10-02T11:05:58","modified_gmt":"2026-10-02T02:05:58","slug":"what-are-cooked-oysters-and-how-do-they-differ-from-raw-and-raw-frozen-oysters","status":"publish","type":"glossary","link":"https:\/\/magazine.samsammulsan.com\/en\/glossary\/what-are-cooked-oysters-and-how-do-they-differ-from-raw-and-raw-frozen-oysters\/","title":{"rendered":"What are Cooked Oysters, and How Do They Differ from Raw and Raw Frozen Oysters?"},"content":{"rendered":"

Cooked oysters are products that have been heated. ‘Cooked’ only describes the heating history; refrigeration\/freezing, IQF\/block, or ready-to-eat (RTE) status are separate specifications. Do not infer immediate serving readiness from the product name; instead, cross-reference process data, intended use, and labels.<\/p>\n

\"Oysters<\/p>\n

Example of oyster preparation scene. This photo does not represent the specifications or safety of cooked products. It is a stock photo for illustrative purposes and does not serve as proof of Samsam Moolsan’s products, facilities, certifications, or Korean-sourced ingredients.
Photo: <\/a>LI WEIBIN \/ Unsplash<\/a> \u00b7 <\/a>License<\/a><\/p>\n

How Do They Differ from Raw and Raw Frozen Oysters?<\/h2>\n
\n\n\n\n\n\n\n
\n

Product<\/p>\n<\/td>\n

\n

Heat Treatment Status<\/p>\n<\/td>\n

\n

Preservation\/Form<\/p>\n<\/td>\n

\n

Usage Method to Verify<\/p>\n<\/td>\n<\/tr>\n

\n

Raw Oysters<\/p>\n<\/td>\n

\n

Not Heated<\/p>\n<\/td>\n

\n

Refrigerated<\/p>\n<\/td>\n

\n

Indication for Raw Consumption\/Cooking<\/p>\n<\/td>\n<\/tr>\n

\n

Raw Frozen Oysters<\/p>\n<\/td>\n

\n

Not Heated<\/p>\n<\/td>\n

\n

IQF or Block Frozen<\/p>\n<\/td>\n

\n

Required Heating After Freezing<\/p>\n<\/td>\n<\/tr>\n

\n

Cooked Oysters<\/p>\n<\/td>\n

\n

Heated<\/p>\n<\/td>\n

\n

Refrigerated or Frozen<\/p>\n<\/td>\n

\n

RTE or Additional Heating Indication<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

The Codex standard for live bivalve molluscs describes the product scope that maintains raw characteristics even after shucking and freezing.[4]<\/a> As this standard pertains to raw products, it cannot solely determine the processing or consumption use of cooked products.<\/p>\n

Heat treatment and freezing methods must also be considered separately. Cooked oysters can also be IQF. Like the selection criteria for raw\/cooked and IQF\/block<\/a>, first determine the heat treatment status, then choose the freezing method based on the unit of use. If terminology is confusing, you can refer to the meaning of IQF<\/a>.<\/p>\n

Are all cooked oysters ready-to-eat products?<\/h2>\n

No. ‘Cooked’ refers to the heating history, while ‘RTE’ refers to the final intended use, typically consumed without further hazard reduction processes.[3]<\/a> FDA guidance also explains that the presence of heated ingredients does not automatically make the final product RTE.[2]<\/a><\/p>\n

The RTE status of purchased products is determined by cross-referencing the following information:<\/p>\n