It may to be possible at work to wash your hands from tap and keep sucham until you sit down and eat your lunch. So is it ok to use a handwash for which contains "alcohol denat" and then use those hands to eat with?
the alcohol should evaporate very quickly, therefore shouldn't be a big deal, but if you're uncomfortable with it, there are alcohol-free hand sanitizers available. they're usually marketed towards children or as "natural" products.
ਸਤਿਗੁਰਬਚਨਕਮਾਵਣੇਸਚਾਏਹੁਵੀਚਾਰੁ॥