Quick Answers

MASTER FOOD PRESERVERS & SAFETY ADVISORS
WSU/Whatcom County Cooperative Extension
1000 N Forest Street, Suite 201, Bellingham WA 98225-5594
Phone: 360/676-6736
FAX: 360/738-2458

Reasons Why Fruit Turns Dark

1. Fruit not processed long enough.

2. Processing temperature not high enough.

a. Water not at rolling boil at beginning of processing.

b. Water not boiling throughout processing time.

3. Time was not counted accurately.

a. Started counting before rolling boil.

b. Did not process long enough.

c. Did not make adjustment for altitude over 1000 feet.

4. Boiling water level not one to two inches above cap of jar during processing.

5. Packing fruits raw that should be precooked (pears, apples, and pineapples).

For more information on any of the above situation you may have questions on or need more information, please call the Whatcom County Cooperative Extension at 360-676-6736.

 

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