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Which fruit is suitable for Jam making?

Which fruit is suitable for Jam making? Correct Answer Guava

Guava is suitable for Jam making.

Key Points Guava:

  • Guava (Psidium guajava)  is a native of tropical America but has long been naturalized in India.
  • Guavas are mostly eaten as fresh fruits.
  • They are also canned to some extent, preserved spiced, or made into jam and marmalades.
  • Guavas are notable for their high content of vitamin C which, in many varieties, is 4 to 10 times greater than in citrus fruits.
  • They also contain a considerable amount of pectin, hence, making them ideal for jam preparation.

Important Points

  • The pectic substances present in fruit are protopectin, pectin, and pectic acid.
  • The protopectin present in underripe fruits inhibits gel formation.
  • The pectin present in properly matured fruits forms a solution with water.
  • In the presence of sugars and acids present in fruit, the pectin sets into a jelly.

Additional InformationPreparation of jam:

  1. Ripe fruits are selected and thoroughly washed to remove dust.
  2. Fruits are chopped, mashed, or diced.
  3. If the fruit has little to no juice of its own, a small quantity of water is added.
  4. Sugar is added in proper quantity.
  5. The finished product should contain 30-50% invert sugar to avoid the crystallization of cane sugar in the jam during storage.
  6. If the fruit is deficient in acid and pectin, commercial preparations are added before the addition of sugar.
  7. The mixture is immediately heated with constant stirring.
  8. After that, packed in jars and are pasteurized for about 30 minutes.

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