50.0 MB (1.7 MB compressed)
4217 x 4141 pixels
35.8 x 35.1 cm ⏐ 14.1 x 13.8 in (300dpi)
STEVE HORRELL / SCIENCE PHOTO LIBRARY STEVE HORRELL / SCIENCE PHOTO LIBRARY
Milk bottles. View of three types of bottled milk. At upper left is semi-skimmed milk, with a red and silver top. This milk has had the majority of its fat removed before bottling. At centre is gold-top milk, which has full fat. Cream is seen at the top of the bottle as the yellowish band. At right is silver-top milk, which is intermediate between the two. Milk has the fat removed to make it more healthy to drink. It is also pasteurised to kill any micro-organisms living in it. This process involves raising the milk's temperature to 64 degrees Celsius or more for a standard length of time. Milk is rich in the essential mineral calcium, and also contains protein and vitamins.
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