To work as a chef in Japan, there are three major requirements: the first is a visa to work legally, the second is Japanese language ability, and the third is skill as a chef. When it comes to Japanese language skills, daily conversation is the basic minimum required. this is roughly the equivalent of 300 hours of Japanese study required at least.
if you are a chef with a specialty (i.e. a Russian chef who works at a Russian restaurant), 10-years of specialty cooking experience may get your visa approved. In this case, there is no requirement of Japanese language fluency.
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