Skimmed milk powder
Although it contains nearly half the fat of semi-skimmed, 1% milk retains the same amount of calcium and vitamin B as semi-skimmed and skimmed milk. Calcium from dairy is better absorbed than any other source of calcium and a 200ml glass of 1% milk can provide an adult with over 1/3 of his or her daily calcium requirement. As well as these nutritional benefits and a reduction in fat, Sainsbury’s and its suppliers have worked to ensure that 1% milk retains the creamy flavour of semi-skimmed milk.
Specifications for skimmed milk powder
ADPI Extra Grade
Fat 1.25% Max 1.5% Max Moisture 4% Max 5% Max Titratable acidity 0.15% Max 0.17% Max Insolubility index 1.25 ml Max 2 ml Max Scorched particles Disc B or better Disk B or 15mg SPC 30,000 per g max 50,000 per g max Coliform 90/g Max 90/g Max Phospatase test & Salmonella, Shingella Negative Negative
25 Kg net in 2 ply paper laminated bags with goose neck. Inner food-grade poly bag of 300 gauge (75 microns)
630 bags per 20′ FCL
ENERGY OF skimmed milk powder
Large amounts of energy are expended in the process of removing water and so plants developed over the years have become increasingly more energy efficient. Evaporators are much more energy efficient than driers, using only a fraction of a kilogram of steam (or the energy equivalent) per kilogram of water removed. Driers on the other hand use several
kilograms of steam (or steam equivalent) per kilogram of water evaporated. Spray drying provides a means of rapidly and gently removing the bulk of the remaining water but, ideally, spray driers have short residence times.