What causes strings in avocados?

Chef's answer
Strings or stringy fruit or the thickening of the vascular bundles (fibers that run longitudinally through the fruit) are generally the result of fruit from younger trees or improper storage conditions. ... Flesh bruising can occur in transit or as a result of compression caused by excessive handling..
Frequently asked Questions 🎓
Strings or stringy fruit or the thickening of the vascular bundles (fibers that run longitudinally through the fruit) are generally the result of fruit from younger trees or improper storage conditions. ... Flesh bruising can occur in transit or as a result of compression caused by excessive handling..
The brown strings found in avocados are actually more common than we wish. It turns out, these "strings" or "threads" are the fibers (vascular bundles) of the fruit. ... Even some avocado varieties are more susceptible than others when it comes to being stringy.
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