Zatarain's Concentrated Shrimp & Crab Boil, 1 gal Jug. Zatarain's Liquid Crab Boil has a distinctive blend of seasonings that gives you great-tasting seafood every time. Shrimp and crab boil liquid features a combination of essential spices and herbs such as marjoram, thyme, cloves, bay leaves and cayenne pepper. Zatarain's Shrimp and Boil Liquid creates authentic Southern Louisiana flavor in seafood boils. The seasoning will deliver zesty flavor to your favorite veggies, potatoes or seafood for