Kitchen utensil the turn of the 20th century, Maria Parloa noted that kitchen utensils were made of (tinned or enamelled) iron and steel, copper, nickel, silver, tin, clay, earthenware, and aluminium. The latter, aluminium, became a popular material for kitchen utensils in the 20th century. Copper has good thermal conductivity and copper utensils are both durable and attractive in appearance. However, they are also comparatively heavier than utensils made of other materials, require scrupulous cleaning to remove poisonous tarnish compounds, and are not suitable for acidic foods. Copper pots are lined with tin to prevent discoloration or altering the taste of food.
Tin Tin Daily News Tin Tin Daily News Tin Tin Daily News also known as Tin Tin Yat Pao was a newspaper in Hong Kong, published between 1960 and 2000. In later years it took a pro-Beijing editorial stand. It was founded by the Wai Kee-shun family, who made their fortune in pharmaceutical industry and was the first colour-printed newspaper in Hong Kong. The newspaper was published by Tin Tin Publication Development Limited and was printed by sister company Tin Tin Colour Printing Company Limited. However, the publishing rights was owned by Tin Tin Yat Pao (International) Limited, which was majority owned by bank.