University Extension.
Can I use lemon juice instead of citric acid?
This recipe uses a measured food-grade citric acid solution. Substituting lemon juice changes the concentration, so follow a tested alternative method if you prefer lemon juice.
Can I dry grapes in direct sunlight?
Yes, but only when conditions are sufficiently hot and dry, with good airflow and protection from insects.
How many days does it take?
It varies considerably. Sun-drying can take several days or longer, depending on the grapes and weather.
How do I know when the raisins
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