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How much does a single plum weigh? The complete guide

3 min read

An average medium-sized plum weighs approximately 66 grams (2.3 ounces). However, the weight of a single plum can vary dramatically based on its variety, with some weighing as little as 12 grams and others over 300 grams.

Quick Summary

A single plum's weight is highly variable, influenced by its cultivar and growing conditions. While a medium plum is about 66 grams, types like Methley are smaller and President plums are larger.

Key Points

  • Average Weight: A standard, medium plum weighs around 66 grams (2.3 ounces).

  • Significant Variation: Plum weight can range from under 20g to over 300g depending on the variety and growing conditions.

  • Cultivar is Key: Varieties like the small Methley or the large President have distinct, genetically determined weight ranges.

  • Growth Factors: Climate, agricultural practices, and nutrient levels (especially potassium) significantly influence a plum's final size.

  • Practical Implications: Weight is important for nutrition tracking, commercial sorting, and recipe accuracy.

  • Guinness Record: The KIYO plum, a giant variety, holds the Guinness World Record for the heaviest plum, with a specimen weighing over 300 grams.

In This Article

The Average Weight of a Single Plum

While the search results confirm that an average medium-sized plum weighs about 66 grams or 2.3 ounces, this figure represents only one of the many variations in plum size. The vast differences in plum weight are influenced by several factors, including the specific variety, the climate in which it was grown, and the agricultural practices used. To truly understand how much a single plum weighs, one must look beyond the average to the wide spectrum of plum cultivars, which range from small, snackable fruits to surprisingly large specimens.

Plum Weight Variations by Cultivar

The genetic makeup of a plum, which determines its cultivar, is the most significant factor affecting its weight. Researchers have categorized plum fruits based on their size, illustrating the dramatic range in potential weight. This means that when you buy a bag of plums, you are likely purchasing fruits with a fresh weight that varies considerably depending on the specific varieties included. Here are some examples of different plum varieties and their typical weights, based on studies:

  • Methley: One of the smaller varieties, a Methley plum can weigh as little as 12.4 grams.
  • Shakar Prune: This small fruit typically weighs around 17.5 grams.
  • Hersminar: Considered a medium-sized plum, this variety weighs about 26.3 grams.
  • Santa Rosa: Another medium-sized cultivar, a Santa Rosa plum weighs approximately 30.9 grams.
  • Red Beaut: This cultivar is on the larger side, with a typical weight of 52.9 grams.
  • President: A large European plum, the President cultivar can reach weights of 62.55 grams or more.
  • KIYO: The world's heaviest plum, this variety can weigh between 200g and 300g, with the record-breaking fruit weighing an astounding 323.77 grams.

Factors Affecting Plum Size and Weight

Beyond the genetic traits of the cultivar, other environmental and management factors play a crucial role in determining a plum's final size and weight. These include:

  • Climate and Soil Conditions: The local climate, including rainfall and temperature, along with the soil composition, greatly affects fruit development.
  • Nutrient Application: Proper crop nutrition is vital. Potassium and nitrogen, in particular, are key drivers of fruit weight and size. A balanced application of nutrients, including phosphorus and calcium, is also important.
  • Orchard Management: Practices like pruning, fruit thinning, and irrigation management can directly impact the size and yield of the plums on a tree.
  • Hormonal Treatments: In some commercial settings, treatments such as gibberellic acid can be used to increase fruit size.

Plum Weight Comparison Table

Variety Average Weight (g) Average Weight (oz)
Methley ~12.4 ~0.44
Shakar Prune ~17.5 ~0.62
Hersminar ~26.3 ~0.93
Santa Rosa ~30.9 ~1.09
Red Beaut ~52.9 ~1.87
President ~62.55 ~2.21
KIYO 200-300 7.1-10.6

Nutritional and Practical Implications

Understanding how much a single plum weighs has practical implications. For those tracking calorie intake, the weight is directly correlated with nutritional content. A medium plum, for example, has about 30 calories, 7.5g of carbs, and almost 1g of fiber. Larger plums, of course, will have higher values. Furthermore, the weight affects culinary applications, especially in recipes requiring precise fruit quantities. For commercial growers and packagers, weight and size grading are essential for sorting produce and meeting consumer expectations. It's also worth noting the difference between fresh and dried plums (prunes), as the dehydration process concentrates sugars and greatly reduces the fruit's overall weight while increasing caloric density.

Conclusion

In summary, while a single, medium-sized plum weighs an average of 66 grams, this figure is far from a universal standard. The weight of a plum is a highly variable characteristic determined by a complex interplay of its genetic makeup (cultivar), and external factors like climate and horticultural care. Therefore, the phrase 'how much does a single plum weigh?' has no single answer, and the weight can range from a mere 12 grams for a small variety to hundreds of grams for a record-breaking fruit. Knowing this variability is key for anyone involved with plums, from the home cook to the large-scale grower. For more information on how agricultural practices affect stone fruit development, you can consult resources like the Yara UK guide on increasing fruit size.

Frequently Asked Questions

One average medium-sized plum is equivalent to approximately 2.3 ounces.

Plum weight varies due to differences in cultivar (genetic makeup), environmental factors like climate, and specific agricultural management practices, such as nutrient and water supply.

The KIYO plum, a variety from Japan, holds the Guinness World Record for the heaviest plum, with specimens weighing over 300 grams.

The weight of a plum's stone, or pit, is also variable. For a large President cultivar, the stone can weigh around 2.48 grams, but this changes with the size of the fruit and variety.

Yes, when plums are dried into prunes, they lose significant water weight, and their sugars become more concentrated, changing their nutritional profile and weight significantly.

A single medium plum weighing about 66 grams contains roughly 30 calories, with most of its energy coming from its natural carbohydrates.

Yes, proper nutrient management, particularly with potassium and nitrogen, can help increase both the size and overall yield of stone fruits like plums.

References

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.