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McIntosh (apple)

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The McIntosh apple is a widely cultivated fruit variety known for its distinct characteristics. Often called the McIntosh Red or simply the "Mac," it serves as the national apple of Canada.

Apples on tree 2011 G1 cropped
Apples on tree 2011 G1 cropped

This cultivar is prized for its versatile culinary uses and its ability to thrive in specific climates. It is a general-purpose apple used for eating raw, making apple sauce, or baking pies. Because it requires less time to cook than most other varieties, it is a popular choice for desserts. Its popularity has made it a staple in eastern Canada, the northeastern United States, and parts of Eastern Europe.

Physically, the McIntosh is a small to medium-sized round fruit with a short stem. The skin is red and green, and it is thick, tender, and easy to peel.

Platexlvii
Platexlvii

Inside, the white flesh may show tints of green or pink. The flesh is juicy, firm, and tender, though it can become soft or mealy easily. Because the fruit is prone to bruising, it requires careful handling during harvest and transport. To prevent spoilage, the fruit can be stored in a controlled atmosphere. In these environments, oxygen levels are kept between 1.5% and 4.5%, while carbon dioxide stays between 1% and 5%. Under these precise conditions, a McIntosh can stay fresh for five to eight months.

Growing the McIntosh requires specific environmental conditions to ensure high quality. The trees grow best in cool regions characterized by cold nights and clear autumn days. If these conditions are not met, the fruit may suffer from soft flesh or poor color. It may even fall from the tree before the harvest is complete. The trees themselves are moderately vigorous and spreading in their growth habit. They are also quite hardy, surviving in USDA Hardiness zones as low as 4a.

Canadian Apple Production
Canadian Apple Production

However, without proper care, the trees can be susceptible to apple scab, which can ruin entire crops.

The history of the McIntosh began in 1811 on a farm in Dundela, Upper Canada. John McIntosh discovered the original sapling while clearing his land. It is believed the seedlings may have come from discarded European fruit, such as the Snow Apple. McIntosh's grandchildren referred to the fruit as "Granny's apple" because they watched their grandmother tend to the tree. In 1835, the family began selling seedlings, but these did not always match the quality of the original. To solve this, John's son, Allan, learned the technique of grafting. Grafting allows farmers to clone the original tree to maintain its unique fruit properties. The cultivar was renamed "McIntosh Red" in 1836 and entered commercial production by 1870.

Throughout the twentieth century, the McIntosh was a dominant force in the apple market. By the 1960s, it accounted for 40% of the Canadian apple market. In the United States, it was one of the most produced apples, trailing only the Red Delicious and Golden Delicious. In the northeastern U.S., it became a vital replacement for Baldwin trees lost during a severe winter in 1933–34. While its market share has declined recently, it remains significant. In 2014, its Canadian market share was 28%, and it remains one of the nine most popular cultivars in the U.S. as of 2025. In Quebec, McIntosh apples still made up about two-fifths of the total harvest in 2020.

The McIntosh is also a vital tool in the science of apple breeding. It is one of the top five cultivars used in cloning due to its winter hardiness. A 1996 study revealed that the McIntosh was a parent in 101 of 439 selected cultivars. This makes it one of the most important founding clones in history. It was used in over half of the Canadian cultivars selected for breeding. Many well-known apples are descendants of the McIntosh, including the Cortland, the Empire, and the Spartan. Other offspring include the Macoun, the Lobo, and the Melba.

Pommes du marché Jean-Talon - McIntosh
Pommes du marché Jean-Talon - McIntosh

Beyond the orchard, the McIntosh has left a mark on modern culture. The Macintosh line of personal computers, developed by Apple Computer, was named after this apple cultivar. This connection led to the common abbreviation "Mac," which was also used for the computer line starting in 1999.

Macintosh 128k transparency
Macintosh 128k transparency

Today, the McIntosh faces new competition from sweeter, crisper varieties like the Gala, Honeycrisp, and Ambrosia. Despite this, it remains a beloved legacy variety. Because it does not require royalties for cultivation, it remains a practical choice for many orchardists.

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File:Platexlvii.jpg
Platexlvii.jpg
File:Apples on tree 2011 G1 cropped.jpg
Apples on tree 2011 G1 cropped.jpg
File:Pommes du marché Jean-Talon - McIntosh.jpg
Pommes du marché Jean-Talon - McIntosh.jpg
File:Canadian Apple Production.png
Canadian Apple Production.png
File:Macintosh 128k transparency.png
Macintosh 128k transparency.png
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