chewing tobacco and prostate cancer — PICRYL Mouth Cancer From Chewing Tobacco:
Description
Tobacco can stick to the soleplate, and repeated use could damage it

Many other states and localities have enacted more limited restrictions

Not one tear filling in the 2 boxes I have tried

Tolins M, Ruchirawat M, Landrigan P (Jul.2014) The developmental neurotoxicity of arsenic: cognitive and behavioral consequences of early life exposure

Change them out every other day until the smells disappear

Since e-liquid is water soluble, any liquid cleaner should work for this task