In the United States, the sticky material used to seal envelopes is gluten-free because it’s derived from corn or tapioca. However, this may not be true in other countries. To eliminate any concern, refrain from licking your envelopes and use an envelope sealer, glue stick or wet paper towel instead.
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- Does “gluten-free” on the package mean “100 percent gluten-free?”
- What are some companies that have 100 percent dedicated gluten-free facilities or dedicated equipment for…