Vegetable peelers go dull rather fast. I spent many, many years just tossing them out and buying new ones. I wish I learned this trick when I first moved out on my own:Just take the back of a paring knife and run it back and forth against the blades. Flip the peeler over and do the same. I bought a paring knife at the 99 cent store just for this purpose.
By attosa from Los Angeles, CA
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For an inexpensive homemade vegetable broth, I save all the peelings from potatoes and carrots, ends of celery, etc.