10 lb Box of Frozen Lobster Tails at Costco
10 pound boxes of frozen lobster tails at Costco are now in-store for Thanksgiving! These are “Rock Lobster” which is also called spiny lobster and they are warm water lobsters. Warm water lobsters are smaller than a maine lobster (or cold water lobster), do not have that buttery sweet flavor of a Maine Lobster, and do not have claws. They are caught in Mexico, the Caribbean, and other warm waters.
ProTip: Check the boxes carefully before you buy, and make sure you are getting the kind of lobster you think you are. Both are good but have different price points, and many may only be looking for cold water lobster. I saw cooked cold water lobsters sold defrosted in the meat and seafood department!
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Costco Item Number and Price
Wild Cold Water Lobster Tail 10lb box is Costco item number 448576 and costs $229.99 in-store at Costco. That shakes out to $23/lb.
last price check: 11/25/2024
I previously reported on 10 lb boxes of warm water lobster that were item number 47076 and cost $199.99 in Summer 2024. they appear identical to me, perhaps a manufacturer change.

Relevant Post: Clarified Butter Recipe for Lobster and Crab
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