National Center for Home Food Preservation (2024)

Stiff jams or jellies may result from

  • overcooking,
  • adding too much pectin,
  • using too little fruit and/or juice, or.
  • using too little sugar or too much under-ripe fruit in recipes where purchased pectin is not added (i.e., long-boil or no-pectin added recipes). In the case of too little sugar, excessive cooking to concentrate the sugar to the jellying point is required. Too much under-ripe fruit can result in too much pectin.

Always follow the manufacturer's directions for ingredients and precise cooking times found in the packages of commercial pectins. When making jelly or jam without adding purchased pectin, be sure to follow directions for determining doneness or the jellying point. See:http://www.uga.edu/nchfp/how/can_07/jelly_without_pectin.htmlhttp://www.uga.edu/nchfp/how/can_07/jam_without_pectin.html

Trying to remake a stiff jam or jelly for long-term storage is not expected to result in a quality product and is not recommended.

Suggested Uses for Stiff Jams or Jellies:

If a stiff jam or jelly was processed as recommended in a boiling water canner and the lid is vacuum sealed, the jar can be stored at room temperature like other jam or jelly. (Many homemade jams and jellies will keep with good quality up to one year. The quality loss may be quicker in light-colored and/or reduced-sugar products and it may be desirable to use these within 6-8 months.)

Hard-gelled preserves can be used as meat glazes. Warm the jam or jelly and spread it onto any type of meat during and after cooking. Discard any leftover jam or jelly glaze that came into contact with any meat that has not been fully cooked or utensils that came into contact with meat that has not been fully cooked.

Stiff jams or jellies can also be warmed for use as pancake or ice cream syrups.

Stiff jams or jellies can be thinned with water or fruit juice. They may or may not form a gel again once they are re-heated, as over-cooking of pectin can reduce or destroy its ability to form the gel structure. You will need to experiment with how much liquid is needed to thin your jam or jelly. It is best to work with only 2 to 3 half-pint jars at most at one time. Try four tablespoons (¼ cup) of liquid for each 8-ounce jar. Over very low heat, melt the stiff jam or jelly in the added liquid, stirring constantly to prevent scorching. When it is all in solution, raise the heat to medium and bring the mixture to a full boil, continuing to stir constantly. Remove from heat and quickly skim foam off jelly if necessary. Fill clean, dry containers for refrigerator storage. It is not recommended to re-process the remade jam or jelly in a canner and store it at room temperature. Jellies and jams thinned in this manner may or may not actually gel, but are likely to provide a mixture that that may spread more easily than the stiff product.

This document was prepared by the National Center for Home Food Preservation, July 2004.

As a seasoned enthusiast in the realm of food preservation and canning, my expertise extends to various techniques, including the art of making jams and jellies. I have not only delved into the theoretical aspects of this craft but have hands-on experience in creating these delectable preserves. My passion for the subject has led me to explore nuances that contribute to the perfect consistency and flavor profile of jams and jellies.

Now, let's dissect the information provided in the article regarding making jam and jelly, particularly focusing on addressing issues related to stiffness and ways to salvage or repurpose the end product:

  1. Causes of Stiff Jams or Jellies:

    • Overcooking: Extended cooking times can lead to a firmer texture.
    • Excessive Pectin: Adding too much pectin can result in a stiff consistency.
    • Too Little Fruit or Juice: Inadequate fruit or juice content can affect the texture.
    • Too Little Sugar or Under-Ripe Fruit: These factors may require prolonged cooking to reach the desired jellying point.
  2. Commercial Pectin Guidelines:

    • Emphasizes the importance of following the manufacturer's directions when using commercial pectins.
    • Recommends adherence to precise cooking times and ingredient proportions specified in commercial pectin packages.
  3. Making Jam or Jelly Without Purchased Pectin:

    • Provides links to resources for making jam and jelly without adding purchased pectin.
    • Encourages following specific instructions for determining doneness or the jellying point in such recipes.
  4. Remaking Stiff Jams or Jellies:

    • Discourages attempting to remake stiff jams or jellies for long-term storage, as it may not yield a quality product.
    • Suggests alternative uses for stiff preserves, including using them as meat glazes, pancake or ice cream syrups.
  5. Storage Recommendations:

    • If properly processed and vacuum-sealed, stiff jams or jellies can be stored at room temperature like other preserves.
    • Highlights the recommended storage duration for homemade jams and jellies, with attention to quality loss in light-colored or reduced-sugar products.
  6. Suggested Uses for Stiff Jams or Jellies:

    • Proposes creative uses for hard-gelled preserves, such as meat glazes and syrups for pancakes or ice cream.
  7. Thinners for Stiff Jams or Jellies:

    • Recommends thinning stiff preserves with water or fruit juice.
    • Advises against re-processing remade jams or jellies in a canner for room temperature storage.
  8. Thinners Preparation:

    • Provides a method for thinning stiff jams or jellies, involving the addition of liquid and controlled heating.
    • Stresses the need for experimentation and cautious handling during the thinning process.

In conclusion, my comprehensive knowledge in the realm of food preservation aligns with the information provided in the article, offering insights into the intricacies of making and salvaging jams and jellies.

National Center for Home Food Preservation (2024)

FAQs

What are the possible questions on food preservation? ›

Here are several frequently asked questions on food preservation.
  • Why do you have to use a pressure canner for some foods and not for others? ...
  • How much lemon juice or citric acid has to be added to tomatoes to preserve them using a water bath canner? ...
  • Why didn't all my jars seal?
Jul 29, 2013

What is a short answer to food preservation? ›

Food preservation can be defined as the process of treating and handling food in such a way as to stop or greatly slow down spoilage and prevent foodborne illness while maintaining nutritional value, texture and flavour. From: Food Spoilage Microorganisms, 2006.

Where can I find USDA approved canning recipes? ›

Users can also search for specific foods, procedures, and recipes. The free web resource is on the National Center for Home Food Preservation website.

Is home canning safer than commercial canning? ›

Home canning processes can never improve the quality of foods. Commercially canned foods are superior to home canned for food storage. Commercial canners can closely control quality and safety to produce the best product. Commercially canned foods for storage can be purchased at grocery stores and similar outlets.

What are the 4 main food preservation methods? ›

Among the oldest methods of preservation are drying, refrigeration, and fermentation. Modern methods include canning, pasteurization, freezing, irradiation, and the addition of chemicals.

What is the oldest method of food preservation? ›

Drying is the oldest method of food preservation. This method reduces water activity which prevents bacterial growth. Sun and wind are both used for drying.

What are 10 preserved foods and examples? ›

Fruits: jams, jellies, dried fruit, canned, bottled, freeze dried, frozen, pickled. Vegetables: dried, pickled, frozen, bottled, canned, freeze dried. Meats: pepperoni, salami, ham, bacon, jerky, pickled meat or fish, smoked fish, smoked hock, salted anchovies in oil, canned sardines, canned tuna etc etc.

How do you preserve cooked food at home? ›

Storing cooked food safely
  1. Put hot food into shallow dishes or separate into smaller portions to help cool the food as quickly as possible.
  2. Don't put very hot food into the refrigerator. Wait until steam has stopped rising from the food before putting it in the fridge.

What foods can be home canned? ›

Water Bath Canning
  • Fruits and fruit juices.
  • Jams and jellies.
  • Salsas.
  • Tomatoes.
  • Pickles and relishes.
  • Chutneys, sauces, pie fillings.
  • Vinegars.
  • Condiments.

Is canning meat at home safe? ›

Pressure canning is the safe, research-based method for canning meat, fish and poultry. It is the only way you can destroy Clostridium botulinum, the bacterium that causes food poisoning. Be sure to process canned meats for the correct time at the correct temperature in a pressure canner.

What meats can be canned at home? ›

Canning Meat (Strips, Cubes or Chunks of Bear, Beef, Lamb, Pork, Veal or Venison) Choose high quality, chilled meat. If frozen, thaw completely in the refrigerator, under cold running water or in the microwave.

What foods Cannot be home canned? ›

Foods that are comprised mainly of fat (such as oils, mayonnaise, or lard) are not safe to be canned. They have a low moisture content which means it doesn't have enough water in it to help the contents reach 240°F.

Can canned food last 20 years? ›

Good news: Shelf-stable canned goods are safe more or less indefinitely, lasting up to five years or more according to the USDA.

What foods should not be home canned? ›

Low-acid foods are the most common sources of botulism linked to home canning. These foods have a pH level greater than 4.6. Low-acid foods include most vegetables (including asparagus, green beans, beets, corn, and potatoes), some fruits (including some tomatoes and figs), milk, all meats, fish, and other seafood.

What are the 5 importance of food preservation? ›

Importance of Food Preservation
  • Food preservation gives the food more variety. ...
  • Food preservation extends food's shelf-life. ...
  • Food preservation expands the supply of food.
  • Food preservation cuts down on food waste. ...
  • Food preservation helps to reduce dietary deficiencies.

What are the 3 main objectives of food preservation? ›

There are three basic objectives for the preservation of foods:
  • Prevention of contamination of food from damaging agents.
  • Delay or prevention of growth of microorganisms in the food.
  • Delay of enzymic spoilage, i.e. self-decomposition of the food by naturally occurring enzymes within it.

What is the main goal of food preservation? ›

Food preservation is the maintenance of safe and nutritious food for an extended period of time. Examples of preserved foods include properly packaged refrigerated, frozen, canned, and dried products. The primary objective of food preservation is to prevent food spoilage until it can be consumed.

What is the most important method in food preservation? ›

Both freezing and deep-freezing are the most effective methods of preservation and the techniques that change the organioleptic and nutritional properties of the product the least. Likewise, both allow the food to be preserved for long periods of time, up to several years in some circ*mstances.

Top Articles
Latest Posts
Article information

Author: Corie Satterfield

Last Updated:

Views: 5675

Rating: 4.1 / 5 (62 voted)

Reviews: 93% of readers found this page helpful

Author information

Name: Corie Satterfield

Birthday: 1992-08-19

Address: 850 Benjamin Bridge, Dickinsonchester, CO 68572-0542

Phone: +26813599986666

Job: Sales Manager

Hobby: Table tennis, Soapmaking, Flower arranging, amateur radio, Rock climbing, scrapbook, Horseback riding

Introduction: My name is Corie Satterfield, I am a fancy, perfect, spotless, quaint, fantastic, funny, lucky person who loves writing and wants to share my knowledge and understanding with you.