Also known as Redhook ESB
Commercial description
Blueline is a special line of beers avalable only at the brewery adapted from the classic Redhook Ale recipes. Redhook Blueline ESB is a dry-hopped version of Redhook ESB.
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Redhook ESB

The brewer markets this same or near-same product by more than one names. This can be the result of a brewer distributing this beer under different names in different countries, or the brewer simply changing the name, but not the recipe at different points in time.