This collection of documents from University Extension offices nationwide provides information on and examples of refrigeration and freezing preservation methods. 

Research on food preservation is ongoing – recommendations may have changed since the release of some documents. Please refer to the National Center for Home Food Preservation for the most current recommendations.

Scroll down to see the collection of publications on the following topics: General Overview, Fish & Meats & Seafood, Prepared Foods, Fruits, Vegetables.

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Overview

• Ask an Expert: Eight Tips for Freezing Produce, Utah State University Extension, 2017
• The Basics of Freezing Foods at Home, University of Maryland Extension, FS-1071, 2018
• Buying a Home Freeze-Dryer: What to Know Before You Go, Utah State University Extension, Publication FN/Preservation/2019-02pr, 2019
• Canning and Freezing Questions and Answers, Penn State University Extension, Articles, 2017
• Food Freezing Guide, North Dakota State University Extension Service, FN 403, 2019
• Food Preservation Without Sugar or Salt, Colorado State University Extension, Fact Sheet 9.302, 2012
• Freezing Dairy Products, Eggs and other Foods, North Dakota State University Extension Service, FN 616, 2017
• Freezing Fruits & Vegetables, University of Wisconsin Extension Cooperative Extension, B3278, 2008
• Freezing Fruits and Vegetables, Pacific Northwest Extension, PNW 214, 2018
• How to Freeze Unusual Fruits and Vegetables, University of Missouri Extension
• If Your Home Freezer Stops, Oregon State University Extension Service, SP 50-470, 2013
• Using Preserved Food Safely, Oregon State University Extension Service, SP 50-494, 2014
• Foods That Do Not Freeze Well, Oregon State University Extension Service, SP 50-766, 2013
• Freezer Problem Solver, University of Missouri Extension
• Freezing Basics, Clemson University Cooperative Extension, Fact Sheet HGIC 3060, 1999
• Freezing Basics, University of Missouri Extension
• Freezing Eggs, Clemson University Cooperative Extension
• Freezing Foods for Quality: "Dump" Recipes, Clemson University Cooperative Extension
• Freezing Food to Extend Shelf-Life During Quarantine, Penn State University Extension, Articles, 2020
• Freezing Fruits & Vegetables, Clemson University Cooperative Extension, Fact Sheet HGIC 3063, 2011
• Freezing Fruits and Vegetables, Cornell Cooperative Extension, 2010
• Freezing: Fruits and Vegetables, Iowa State University Extension and Outreach, PM 1045, 2015
• Frozen Food Storage Guide, Oregon State University Extension Service, SP 50-711, 2013
• Home Freezing Equipment, Clemson University Cooperative Extension, Fact Sheet HGIC 3024, 2012
• It's Time for a Clean Sweep, Your Refrigerator Will Thank You, Clemson University Cooperative Extension, Hot Topic, 2018
• Packing, Loading the Freezer and Refreezing, North Dakota State University Extension Service, FN 614, 2017
• Packing Methods for Freezing Foods, University of Maryland Extension, FS-1070, 2018
• Preserving Soup Safely, Penn State University Extension, Articles, 2017

Fish, Meats & Seafood

• Canning and Freezing Venison, Penn State University Extension, Articles, 2019
• Field to Freezer, North Dakota State University Extension Service, FN 125, 2017
• Freezing Poultry and Fish, North Dakota State University Extension Service, FN 615, 2017
• Freezing Meats & Seafood, Clemson University Cooperative Extension, Fact Sheet HGIC 3064, 2012
• Home Freezing of Seafood, Pacific Northwest Extension, PNW0586, 2008
• How to Freeze Meat, Poultry, Fish, Eggs and Dairy Products, University of Missouri Extension
• Preserving Food: Freezing Animal Products, University of Georgia Extension, 2002

Prepared Foods

• Freezer Meal Planning, Utah State University Cooperative Extension, Publication FN/FoodPreservation/2009-01pr, 2009
• Freezer Meals for Family Mealtime, Penn State University Extension, Articles, 2016
• Freezing Convenience Foods - that you've prepared at home, Pacific Northwest Extension, PNW 296, 2013
• Freezing Prepared Foods, Clemson University Cooperative Extension, Fact Sheet HGIC 3065, 2012
• How to Freeze Home-Prepared Foods, University of Missouri Extension
• Make-Ahead Freezer Meals to the Rescue, Penn State University Extension, Articles, 2016
• Freezing Prepared Foods, University of Georgia Extension, 2014

Fruit

• Apples, Penn State University Extension, Code UK 126, 2019
• Apples, Kansas State Research and Extension, MF 1187, 2015
• Apples, Purdue University Extension, HHS-809-W, 2015
• Preserving Apples, Clemson Cooperative Extension, Fact Sheet HGIC 3120, 2015
• Blueberries, University of Alaska Fairbanks, Cooperative Extension Service, FNH-00111, 2016
• Blueberries, Penn State University Extension, Code UK125, 2019
• Blueberries, Purdue University Extension, HHS-807-W, 2015
• Cherries, Penn State University Extension, Code UK131, 2019
• Cherries, Kansas State Research and Extension, MF 1180, 2015
• Cherries, Purdue University Extension, HHS-805-W, 2015
• Chokecherries, University of Alaska Fairbanks, Cooperative Extension Service, FNH-00113, 2013
• Highbush Cranberries, University of Alaska Fairbanks, Cooperative Extension Service, FNH-00112, 2017
• Preserving Cranberries, Penn State University Extension, Articles, 2018
• Freezing Fruit, University of Georgia Extension, 2000
• Freezing Fruit, Montana State University Extension, MT200910HR, 2017
• Freezing Fruits, Colorado State University Extension, Fact Sheet 9.331, 2013
• Freezing Fruits, Penn State University Extension, Code EE0240, 2018
• Freezing Fruits, North Dakota State University Extension Service, FN 182, 2016
• Freezing Fruits, Step by Step, Clemson University Cooperative Extension, Fact Sheet HGIC 3067, 2005
• Fruit Freezing Methods, Utah State University Extension, Publication FN 215, 1995 
• Gooseberries, University of Alaska Fairbanks, Cooperative Extension Service, FNH-00121, 2013
• Handy Reference for Freezing Fruits, Cornell Cooperative Extension, 2002
• How to Freeze Fruit, University of Missouri Extension
• Melons, Michigan State University Extension, Extension Bulletin E3250, 2015
• Melones y sandías, Michigan State University Extension, Boletín E3250 de la Oficina de Extensión, 2015
• Peaches, Kansas State Research and Extension, MF 1182, 2015
• Peaches, Apricots, Nectarines, Penn State University Extension, Code UK122, 2019
• Peaches, Apricots, Nectarines, Purdue University Extension, HHS-808-W, 2015
• Preserving Peaches: Canning, Freezing, Jam or Salsa, Clemson University Cooperative Extension
• Pears, Penn State University Extension, Code UK130, 2019
• Pears, Purdue University Extension, HHS-804-W, 2015
• Preserving Pears, Penn State University Extension, Articles, 2019
• Strawberries, Penn State University Extension, Code UK132, 2019
• Strawberries, Kansas State Research and Extension, MF 1178, 2015
• Strawberries, Purdue University Extension, HHS-806-W, 2015
• Freezing Strawberries, Penn State University Extension, Articles, 2018
• Strawberries, Strawberries, Strawberries: Making Strawberry Jam, Clemson University Cooperative Extension
• Tomatoes, Kansas State Research and Extension, MF 1185, 2015
• Tomatoes, Purdue University Extension, HHS-803-W, 2015
• Canning and Freezing Tomatoes and Making Salsa, North Dakota State University Extension Service, FN 175, 2019
• Canning and Freezing: Tomatoes, Iowa State University Extension and Outreach, PM 638, 2011

Vegetables

• Asparagus: Canning, Freezing, Pickling, Penn State University Extension, Articles, 2019
• Beans, Kansas State Research and Extension, MF 1179, 2015
• How to Freeze Vegetables, University of Missouri Extension.
• How to Preserve Green and Yellow Beans, Penn State University Extension, Articles, 2019
• Snap Beans, Penn State University Extension, Code UK124, 2019
• Snap Beans, Purdue University Extension, HHS-814-W, 2015
• Sweet Corn, Penn State University Extension, Code UK127, 2019
• Sweet Corn, Kansas State Research and Extension, MF 1183, 2015
• Sweet Corn, Purdue University Extension, HHS-815-W, 2015
• Preserving Sweet Corn Successfully, Penn State University Extension, Articles, 2018
• Cucumbers, Kansas State Research and Extension, MF 1184, 2015
• Freezing Herbs, Penn State University Extension, Articles, 2019
• Peppers, Penn State University Extension, Code UK128, 2019
• Peppers, Kansas State Research and Extension, MF 1186, 2015
• Peppers, Purdue University Extension, HHS-813-W, 2015
• Hot Peppers - Preserving the Heat!, Penn State University Extension, Articles, 2019
• Potatoes & Sweet Potatoes, Penn State University Extension, Code EE0205, 2018
• Sweet Potato Basics, Clemson University Cooperative Extension, Fact Sheet HGIC 3538, 2005
• Preserving Those Colorful Garden Peppers, Penn State University Extension, Articles, 2018
• Preserving Late Season Fall Vegetables, Penn State University Extension, Articles, 2018
• Preserving Mushrooms, Oregon State University Extension Service, SP 50-919, 2013
• Preserving Peas, Penn State University Extension, Articles, 2018
• Preserving Pumpkin & Winter Squash, Clemson University Cooperative Extension, Fact Sheet HGIC 3281, 2010
• Preserving Rhubarb, Penn State University Extension, Articles, 2018
• Preserving Spring Greens, Clemson University Cooperative Extension
• Pumpkin Basics, Clemson University Cooperative Extension, Fact Sheet HGIC 3536, 2004
• Red Beets, Penn State University Extension, Articles, 2019
• Root Vegetables - Beets, Carrots, Turnips, and Rutabagas, Penn State University Extension, Code EE0206, 2018
• Squash and Pumpkin, Penn State University Extension, Code EE0315, 2019
• Vegetables, Kansas State Research and Extension, MF 1181, 2015
• Freezing Vegetables, Colorado State University Extension, Fact Sheet 9.330, 2013
• Freezing Vegetables, Penn State University Extension, Code EE0063, 2019
• Freezing Vegetables, University of Georgia Extension, 2000
• Freezing Vegetables, Montana State University Extension, MT200908HR, 2017
• Freezing Vegetables,  North Dakota State University Extension Service, FN 187, 2016
• Freezing Vegetables, Purdue University Extension, HHS-800-W, 2015
• Handy Reference for Freezing Vegetables, Cornell Cooperative Extension, 2010
• Preserving Vegetables, Clemson University Cooperative Extension, Fact Sheet HGIC 3300, 1999
• What to do with All Those Greens?, Clemson University Cooperative Extension, Hot Topic, 2018
• Zucchini, Penn State University Extension, Articles, 2018