First, Extremely Dirty cassettes are sent out usually to customers .... very unreliable semi conductors being received by customers, very rarely does this company hit the standards they promote on their website ... they claim they have a “mass spec.” machine, but no employees certified/qualified to operate the machine, leaving a lot of room error on the results, of which leaves customers waiting ... or getting wrong results .... most machines being used are from 1994 ... constantly breaking down, the floors and cleanliness inside the “clean rooms” where the wafers are prepared and supposed to be within certain particle range .... the rooms are atrocious and extremely dirty with no upkeep ..... they only hire through temp agency with a insane turn over rate .... the demand keeps the company a float, but that’s about it .... they take advantage of most employees. Also the human resource department seems as if they don’t understand anything at all .... I would recommend - PURE wafer or pretty much any other company before trying Nestec in New Bedford Ma .