Mistakes to Avoid
Boiling the Grapes Too Long
Extended boiling can make the grapes mushy and cause them to lose juice.
Blanch only until fine cracks begin appearing in the skins.
Adding Baking Soda and Oil
Some homemade methods use various combinations of baking soda, oil, and acids.
These aren’t necessary for the specific plain-water blanching and citric acid bath described here.
Drying Grapes in Humid Weather
High humidity can slow drying and encourage spoilage.
Use a dehydrator if the weather isn’t suitable.
Placing Grapes Directly on a Solid Tray
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