Costco Wild Argentine Red Shrimp Tested: Visual Proof, Size Count, and Cook Quality
Q1: Why are Costco Argentine shrimp red in the package if they are raw?
A1: Argentine red shrimp (*Pleoticus muelleri*) are naturally pinkish-red when raw due to high amounts of astaxanthin from their natural diet of wild marine plankton in cold Patagonian waters. Unlike warm-water shrimp that only turn pink when cooked, this wild species displays deep color before seeing any heat.
Q2: How do you properly thaw Kirkland wild Argentine red shrimp?
A2: Place the sealed package (or the desired portion in an airtight bag) into a large bowl of cold water for 15 to 20 minutes, or thaw in the refrigerator overnight. Never run warm or hot water over them, and never microwave them, as the fragile muscle fibers will begin cooking prematurely.
Q3: Are Costco Argentine red shrimp suitable for cold shrimp cocktail?
A3: Yes, but boil them with care. Drop them into salted water at a rolling simmer for just 90 seconds, then plunge them immediately into an ice bath to arrest carryover cooking. Over-boiling will leave the meat mealy instead of firm and sweet.