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Preserve Your Harvest

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Preserve Your Harvest

  1. 1. Preserve Your Harvest Freezing, Drying & Canning
  2. 2. Freezing Blanch First! Blanching is a must for all veg prior to freezing. Blanching stops enzyme actions which can cause loss of flavor, color & texture. It also cleanses the surface of dirt & organisms, brightens the color and helps retard loss of vitamins. Blanching time is crucial & varies with vegetable and size.
  3. 3. Under blanching stimulates the activity of enzymes & is WORSE than NO blanching. Over blanching causes loss of flavor, color, vitamins & minerals.
  4. 4. There are 2 types of Blanching Water Blanching & Steam Blanching Water Blanching-for home freezing, the most satisfactory way to heat all veg is in boiling water. Put veg in a strainer or basket, after adding veg to water, water should return to boiling within a minute, if it doesn't you may have too much veg in the basket. Start counting blanching time as soon as the water returns to a boil.
  5. 5. Steam Blanching-Heating in steam is recommended for a few veggies, broccoli, pumpkin, sweet potatoes & winter squash. Steam blanching takes 1 1/2 times longer, so adjust accordingly.When steaming, hold the veg at least 3” from bottom of pot, put 1” to 2” of water in pot.There should only be one layer of veg for steaming.
  6. 6. Cooling after Blanching Cooling after blanching is VERY important, it stops the cooking process. Cool time should be the same as the blanching time, which varies depending on the veg. Plunge veg into a bowl of ice water immediately after blanching. Allow food to completely dry before freezing. Freeze on cookie sheet first, then transfer to container (bag or hard sided), this prevents having a clumped end product.This also allows you to take out as much veg as you need for each meal.
  7. 7. Back to Freezing… Foods must have proper packing after the blanching is complete. After you have frozen the items on a cookie tray (try lowering your freezer temporarily for this) place them in a hard sided container or a freezer baggie. Regular glass jars break easily at freezer temps, so avoid glass unless tempered.Try removing air from your plastic bag with a straw, removing air helps prevent oxidation which leads to off flavors, or better yet…
  8. 8. Vacuum/Food Sealers Vacuum sealers are great for freezing veg, fruit, meats, soups, or anything you want to keep dry (think of white water rafting and securing your phone) This is another option to protect the veg you have worked so hard to grow, then blanched and froze for a future meal
  9. 9. Dehydrating Veg (still have to blanch first)
  10. 10. Drying is pretty too! Drying food is simple, safe & easy
  11. 11. Drying removes the moisture so bacteria, yeasts & molds cannot grow. It slows down the action of enzymes but does not inactivate them. Blanching also helps to inactivate enzymes too! There are 4 ways to dehydrate food; Sun Drying, Vine Drying, Food Dehydrators & Oven Drying
  12. 12. Sun or Solar Drying High sugar & acid fruits are good for this method Conditions must be favorable, hot, dry, breezy days of 85 degrees of higher and low humidity, 60% or below, takes several days.
  13. 13. Vine Drying To dry beans leave bean pods on the vine until the rattle when shaken. Pick them and shell them, if some are still moist, they must be dried before you put them up, they can be dried in the sun of dehydrator.
  14. 14. Pasteurization- if you are going to sun dry or vine dry you need an additional step to ensure no insects or insect eggs have survived.They can be put in the freezer for 48 hours or placed in the oven, on a cookie sheet, for 30 minutes @ 160 degrees.
  15. 15. Food Dehydrators This method dries food at 140 degrees, uses a fan to circulate the air, compact-fits on your counter, has a timer so no babysitting the food as with the oven method (this is my personal favorite)
  16. 16. Oven Drying This method is slower than electric food dehydrators (2 X as long) To dry your veg or fruit in the oven, temp. must be @ 140 F, leave door slightly open (a wooden spoon works good for this)
  17. 17. To Dry fruit is a little different than drying veg, fruit must be pretreated. Consult UGA’s website for pretreating fruit. http://nchfp.uga.edu/how/ dry.html See handout for drying times
  18. 18. Canning Canning Bath & Pressure Canning
  19. 19. Ok, so why do they call it canning when you use a jar?
  20. 20. Commercial food preservation began shortly after Francois Appert developed the boiling water method. Although glass jars were often used initially, they were difficult to seal and expensive to ship.The first tin canister was developed in 1810, commercial canning became common, the name was shortened to ‘can’ from canister and even after John L. Mason’s invention of a jar with a threaded screw and lid brought about home use of food preserving, the phrase ‘canning’ had stuck.
  21. 21. Canning Bath This method works with high acid foods, foods that use a lot of sugar or vinegar. This method is easier somewhat than pressure canning, (see handout for specifics) it is best for jam, jelly, butters, tomatoes and pickles. Ball Canning has some great recipes, freshpreserving.com
  22. 22. Pressure Canning See handout Special equipment needed. Concern about botulism if done improperly I highly recommend Lyn Deardorff @ Preserving Now, located in Atlanta. Lyn has classes that cover the basics and advanced pressure canning.
  23. 23. Storing Food
  24. 24. Storing Your Stuff To Wash or Not to Wash… Don’t wash if its going in the frig, leave in original packaging except for mushrooms (place in a paper bag) and herbs (wrap the bunch in a damp paper towel before bagging). Do wash greens if visibly dirty or sandy.
  25. 25. To frig or not to frig, that is the question Placing items in the frig reduces its respiration, moisture loss (if stored correctly) and carbohydrate transformation (think corn, turns starchy with time so frig ok, but not good to frig sweet potatoes b/c you want them to sweeten after harvesting)
  26. 26. Climatic Fruit Fruit that will ripen after harvest if picked when mature. Apple,Tomato, Banana, Avocado, Honey Dew, Paw paw
  27. 27. Ethylene Producing Fruit and Veg Ethylene is a gas that promotes ripening and other post-harvest changes Apple, Avocado, Banana, Fig, Mango Papaya, Peach, Nectarine, Pears, Plums, Persimmons, Cantaloupes, Honeydew, Hot Peppers,chiles, Tomato,ripe
  28. 28. Ethylene Sensitive Veg Don’t store these veg with the ethylene producing veg Arugula, Asparagus, Beans,snap, Broccoli, Brussel Sprouts, Cabbage, Carrot, Cauliflower, Chili Pepper, Cucumber, Eggplant, Greens, Green Onion, Herbs, Kale, Lettuce, Parsnip, Parsley, Peas, Pumpkin, Southern Peas, Squash,Tomatillo, Watermelon
  29. 29. Harvest when produce is cool, but after dew has dried off, Get produce out of the sun as soon as possible, Cool and refrigerate as soon as possible
  30. 30. UGA Cooperative Extension website, great for all topics covered here today UGA has a So Easy to Preserve book, I highly recommend this book for all your preserving questions I used the Journeyman Farmer Certificate Program Teaching Resource for some of this info.
  31. 31. Thank-You Janis Sims

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