Once an oyster meets the overall JEMCO quality specifications they are then graded by size.
| Grade | Shell length | Approx % of supply |
| J1 | 90mm+ | 10-30% |
| J2 | 75-90mm | 30-40% |
| J3 | 60-75mm | 30-40% |
| J4 | 50-60mm | as required |
| The above sizes represent the majority of production. Other special sizes such as a 105 or 110mm+ are available on request |
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There are a variety of packs available and the most popular are as follows –
Tray Packed
Frozen Half Shell JEMCO Oysters
Layer packed on 2.5 dozen (30 piece) plastic trays in cardboard boxes.
Plastic sheets used to separate layers
Option A - Standard Tray Pack Carton |
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| Grade | Quantity per tray |
N° of Trays per Carton |
Quantity per Carton |
| J1 | 2.5 doz. | 4 | 10 doz. |
| J2 | 2.5 doz. | 4 | 10 doz. |
| J3 | 2.5 doz. | 5 | 12.5 doz. |
| J4 | 2.5 doz. | 6 | 15 doz. |
| Loading per 20' FCL cntr = approx 1,200 x 10, 12.5 or 15 dozen ctns | |||
Option B - Special Tray Pack Carton |
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| Grade | Quantity per tray |
N° of Trays per Carton |
Inner Carton Quantity |
N° of Cartons per Sleeve |
Quantity per Sleeve |
| J1 | 2.5 doz. | 2 | 5 doz. | 3 | 15 doz. |
| J2 | 2.5 doz. | 2 | 5 doz. | 3 | 15 doz. |
| Loading per 20' FCL cntr = approx 750 x 15 dozen ctns | |||||
Frozen or Chilled Half Shell and Whole Shell JEMCO Oysters
Bulk packed in polystyrene bins inside a plastic liner.
Plastic sheets used to separate layers.
| Grade | Live | Frozen Whole | Frozen or chilled ½ shell |
| J1 | 12 dozen | 12 dozen | 16 dozen |
| J2 | 16 dozen | 16 dozen | 20 dozen |
| J3 | 20 dozen | 20 dozen | 25 dozen |
| J4 | 25 dozen | 25 dozen | 30 dozen |
| Loading per 20' FCL cntr = approx 750 x 15 dozen ctns | |||