<<Disclaimer: Verify this information before applying it to your situation.>>
Listserv.
I have found that licking lots of envelopes causes a problem for me. I
now buy those cheap glue sticks and keep it with my stamps and mail
supplies.
The stick is make of gluten but I do not get it anywhere near my hands
and it works so fast with no mess from water all over my deck.
Hope this is helpful.
Ruth NC/usa