RE: Black Discoloration of Canned Clams

From: Ted Brillantes (tedb@jmbinter.com)
Date: Wed Aug 25 2004 - 18:31:43 PDT

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    Hi Steve,

    My answer is based on experience not research. We do a substantial
    business on canned clams. We act as buying agents for major brands in
    the US and Canada. We inspect samples prior to shipment.

    Black clams are usually an indication of dead clams (dead prior to
    processing). However, we have also noticed darkening (that may be
    mistaken for blackening), which seems to be influenced by the season
    (rains) and fishing ground. Perhaps this is affected by the feed and the
    muddy environment.

    Hope this helps.

    Best regards,

    Ted Brillantes
    QA Manager, JMB International
    69 Prasartsook, Yenarkard, Chongnonsee, Yannawa
    Bangkok 10120 THAILAND
    Tel. 662-249-1951 & 5, 662-671-0157 to 8 ext. 120
    Fax. 662-249-2011, 662-240-1092
    Cell. 669-762-9051

    -----Original Message-----
    From: sharbell@u.washington.edu [mailto:sharbell@u.washington.edu]
    Sent: 26 August, 2004 06:49 AM
    To: seafood@ucdavis.edu
    Subject: Black Discoloration of Canned Clams

         I'm looking for information on a consumer question regarding the
    blackening of canned clams. What's the cause and future prevention?
    Thanks

    Steve Harbell
    Marine Resources Agent
    WSU Cooperative Extension
    Washington Sea Grant
    Tel. (360) 875-9331
    P. O. Box 88, South Bend, WA 98586

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