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Foodie Education: How To Store Dry Milk

Foodie Education: How To Store Dry Milk

Types of Dry Milk

  • Regular and instant non-fat dry milk are made from skim milk that has been dried by spraying into hot air. Instant milk is regular milk which has been further processed causing it to clump together which results in a product that is easier to reconstitute with water than is regular nonfat dry milk.
  • Dried whole milk may also be available, however because of the fat present, it will not store as well as nonfat dry milk.
  • Dried buttermilk is available to be used in recipes calling for buttermilk. It will not keep quite as long as non-fat dried milk since it has a slightly higher fat level.

Things to consider when buying dried milk:

  1. It is best to buy dry milk fortified with vitamins A and D.
  2. A claim of No Preservatives may be on the label to reassure customers, however, added preservatives are not legal therefore no dried milk processed will contain preservatives.
  3. The label may say Grade A to indicate the quality of the milk used in the drying process. Essentially all processing plants producing dried milk use Grade A milk today.
  4. Extra Grade on the label indicates that the processing plant has met certain criteria and the milk is slightly lower in butterfat and moisture content, more soluble, contains fewer bacteria, and contains fewer scorched particles.
  5. The size of the container holding the dried milk should fit storage space considerations and family need. Once a container is opened, the milk will not keep as long, therefore, a very large container is not desirable for a household that consumes a small amount of milk per week.
  6. Type of package becomes important if the dried milk is to be stored for long periods of time. The package should be water proof and impermeable to air. Plastic films are good protection against oxygen over short periods of time, but not if the dried milk is to be stored for more than a year.
  7. Do not buy more dried milk than you would normally use in a reasonable time period.
  8. Date the milk when you buy it.

Storage Conditions

Temperature

The storage temperature is the most important factor in determining the length of time that dried milk can be stored and should be as cool as possible.

READ ALSO: Steps on Effective Storage of Your Fruits

Oxygen

Exclude oxygen as much as possible to decrease the speed of undesirable chemical changes. Dried milk canned with nitrogen or carbon dioxide to replace air (which contains oxygen) will keep longer than dried milk that is exposed to air. Vacuum canning also decreases the available oxygen.

Packaging

The packaging for milk which will be held for extended periods of time should not permit air nor water vapor into the package. Cardboard and poly-film packages do not provide as good of a barrier to air as do metal cans.

Moisture

Moisture will cause caking and accelerate undesirable changes in flavor, therefore, if the milk is not packaged in cans, store it in a dry location.

Light

Most types of packaging will block out light. If dried milk is to be stored in a package type (ex. glass jars, plastic bags) which does not do so, store it in a dark place. Light will accelerate the undesirable chemical changes in flavor and odor.

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