Download presentation
Presentation is loading. Please wait.
Published byTamsin Cook Modified over 8 years ago
1
Food Preservation Independent Living
2
Jams and Jellies
3
Jellied Products have 4 ingredients Fruit- the basic ingredient that gives the flavor and color Sugar-helps jelly become firm Pectin- a carbohydrate found in all fruits that makes fruit juices jell Acid- works along with pectin to make fruit juices jell
4
Kinds of Jellied Products- besides Jam and Jelly Preserves- slightly jellied whole or large pieces of fruit Marmalade- a tender jelly made from citrus fruits Conserves- jellied fruit with raisins and/or nuts added Fruit butter- not a jellied product but made from cooked, pureed fruit.
5
Freezing
6
Hints for Freezing Choose ripe, top-quality fruits and young, tender vegetables and fruits. Leave one inch headspace for expansion. Serve fruits with a few ice crystals. Cut meats in serving size pieces. Meat can be refrozen if it still have ice crystals.
7
Drying
8
Steps for drying I L D B C J G E A F H K
9
New Technologies in Food Preservation
10
Aseptic packaging Commercial packaging method in which a food and its packaging material are sterilized separately.
11
Freeze-drying Method of commercial food preservation in which water vapor is removed from frozen foods.
12
Retort packaging A food preservation process that involves sealing food in airtight containers.
13
Irradiation A type of commercial food preservation that exposes food to low level doses of gamma rays, electron beams or X rays.
14
Terms to Know
15
Canning A food preservation process that involves sealing food in airtight containers.
16
Headspace Space between the food and the closure of a canning or freezing container.
17
Enzyme A complex protein that is produced by living cells and causes specific chemical reactions. Makes fruit ripen and continue until spoiled.
18
Sulfuring Anti-darkening treatment used on some fruits before drying.
19
Ascorbic Acid A food additive that prevents color and flavor loss.
20
Quick-freezing Process of subjecting foods to extremely low temperatures for a short time.
21
Shelf Life The amount of time a food can be stored and remain wholesome.
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.