terça-feira, 27 de janeiro de 2009

Descongelar e voltar a congelar um alimento

Junto informação que creio será útil e trará certezas em alguns dos procedimentos culinários habituais:

Deve-se voltar a congelar um alimento que já iniciou a sua descongelação?
De modo a manter todas as características do produto e também o seu período de conservação (ver prazo de validade indicado na embalagem) não se deve voltar a congelar um produto que já iniciou o seu processo de descongelação.

fonte: Congelados Moreira - http://www.congeladosmoreira.com/conselhos.htm#5


Descongelei o produto. Posso voltar a congelar?
Um produto depois de descongelado, deve ser cozinhado de imediato e só depois se pode voltar a congelar.

fonte: Pescanova - http://www.pescanova.pt/Root/Faqs.aspx


Outras dúvidas e respostas, com interesse, da última fonte de informação (Pescanova):

Passou a validade do produto. Posso consumir?
Sim, desde que nunca tenha sido descongelado. No entanto, pode notar a perda da qualidade do produto.

O que são Cefalópodes?
Os Cefalópodes (Cephalopoda, que significa "pés-na-cabeça") são a classe de moluscos marinhos a que pertencem os Polvos, as Lulas, as Potas e os Chocos.Os cefalópodes apresentam um corpo com simetria bilateral, uma cabeça e olhos bem desenvolvidos e uma boca armada de um bico quitinoso, rodeada por uma coroa de tentáculos. É na boca que existe a um órgão laminar chamado rádula, que reveste uma formação muscular lingual e que se destina especialmente à função de mastigação.São animais extremamente rápidos, tendo desenvolvido um sistema de propulsão na forma de funil (jacto-propulsão), que é uma modificação do pé dos restantes moluscos. A pele contém células pigmentadas, chamadas cromatóforos, que mudam de cor para efeitos de comunicação e de camuflagem, em resultado de acções nervosas directas.A concha está ausente nos polvos, é interna nos chocos, nas potas e lulas e é externa no nautilus e no argonauta. Muitos cefalópodes possuem uma bolsa de tinta, onde se forma um líquido escuro, designado por “ferrado”, que, ao ser lançado, constitui uma nuvem à sua volta e lhes serve de protecção contra os predadores.Conhecem-se cerca de 800 espécies actuais de cefalópodes e duas importantes sub-classes de cefalópodes fósseis, onde se incluem os amonóides, extintos no fim do período Cretáceo, há cerca de 65,5 milhões de anos.

21 comentários:

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Isto é, já podes descongelar uma peça de carne, ou mesmo um camarãozinho tigre para assar no teu grelhador extraordinário, nunca antes utilizado....
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