I'm reading *The Fermented Man* by Derek Dellinger. He talks about U.S. government's regulations about cheese making. For example, cheese can be sold to the public only if it's been aged a minimum of sixty days. Then he says:

> 
> The government’s thinking here seemed fairly sound. **One can always
>  assume a little extra buffer of paranoia built in** when it comes to
>  anything related to public health, but sixty days of fermentation, two
>  solid months, I didn’t think that sounded unreasonable.
> 
> 
> 

I'm confused about the part in bold. I looked up the definitions of assume, buffer, paranoia and built in. But I still couldn't figure out what it means. The sentence just seems very indirect to me. Can anybody explain its meaning for me?