After trying several methods to remove the label glue from the bottles, I finally found the winner.
Goo Be Gone – DIY Natural Adhesive Remover - HubPages
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The No Sweat, Chemical-Free way to Remove Labels and Glue Residue
إزالة الغراء من الزجاج - حياتكِ
Goo & Adhesive Remover Spray Gel
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how to remove label glue from glass jars
This works on PLASTIC AND GLASS JARS!