Tomalley is the soft, greenish digestive gland (hepatopancreas) found inside lobsters and some crabs. It performs functions associated with digestion and nutrient storage. Its creamy texture and concentrated flavour have led to its use in traditional seafood preparations and sauces, but its consumption requires particular caution.
In some regional cuisines, tomalley is eaten in small quantities or incorporated into sauces, compound butters and seafood preparations. Its flavour is rich and distinctive, and it is sometimes blended with lobster or crab meat. It is not the same as the white muscle meat in the tail, claws or body, nor is it the same as the female roe sometimes called coral.
Tomalley is an organ tissue, not ordinary muscle meat. It can accumulate environmental contaminants and marine biotoxins, and advisories may vary by species, harvest area and season. Public-health agencies have issued warnings about consuming lobster tomalley in certain regions because of possible marine toxins. Cooking does not reliably destroy all marine biotoxins.
Do not assume tomalley is safe to consume simply because the lobster or crab meat is approved for sale. Check current local public-health and fisheries advisories and supplier guidance before using it; omit it when its safety status is uncertain. Follow any specific regional advisory and do not use tomalley from an area under a consumption warning.
Chef’s note: If a preparation uses tomalley where its use is permitted and considered safe, identify the ingredient explicitly in the recipe and communicate it to guests. Follow the same crustacean-shellfish allergen controls as for the meat.
Key distinction: Tomalley is the digestive gland of the crustacean. It is different from edible white muscle meat and from roe.
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