Food-grade and sanitary-grade instruments
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I would like to ask what are the requirements for instruments in the baijiu industry; is it sufficient to simply specify food-grade ones? I’ve never seen this type in the samples provided by manufacturers; only the sanitary version is available. The manufacturing process doesn’t seem to require such high standards of sanitation, so I’m not sure how others handle it
Actually, instruments don’t have a “food-grade” classification; this is because instruments are not intended solely for the food and beverage industry. In most industries, a “hygiene grade” is what is chosen. The hygiene grade refers to instruments made of polished stainless steel. For Jiangsu Lixin Instruments, the contact number is 18451285537, with the same number also available on WeChat
The sanitary grade imposes requirements on the connection method; transmitters used on wine tanks all feature standard threads. I’ve seen several samples of sanitary-grade transmitters that do not use threaded connections. The project believes that food-grade standards are sufficient, with no requirements regarding the connection method, so I’m not sure how to proceed
The sanitary-grade connection methods are also different
I have seen EJA’s sanitary-grade pressure transducers, and their connection method is flange diaphragm
You can check the relevant specifications. I only know that instruments of sanitary grade should be easy to disassemble and clean.
In most cases, there is no clear distinction between food-grade and sanitary-grade products; generally (but not necessarily), if one set of requirements is met, the other set is likely to be met as well. The distinction between food-grade and sanitary-grade is due to differences in the applicable scenarios or the direction of certification (the source of the standards). In the industry, there seems to be no difference between sanitary grade and food grade; however, \"sanitary grade\" is a general descriptive term, while \"food grade\" is a term that indicates precision, providing a clearer definition of the standard required, namely that it must meet the standards for food use. Strictly speaking, terms such as food-grade, sanitary-grade, or medical-grade are merely conventional names used by people to indicate whether a material or product meets certain usage requirements (rather than manufacturing standards). So it’s not the case that reaching that level means one can be versatile in any field. For example: As verified by a third-party testing institution, the material meets the **standard GB 4806.1 \"Hygienic Standards for Rubber Products Used in Food\", and can be used to manufacture seals for teacups and similar items; such a material can then be labeled as \"food-grade\"” ； However, even with this material used for pacifiers, it still needs to be tested by a third-party testing agency to prove that it meets the requirements of **Standard GB 4806.2 «Hygienic Standards for Rubber Pacifiers». It cannot be used to make pacifiers just because it has passed the GB 4806.1 testing and can thus be labeled as “food-grade”. Generally, equipment of sanitary grade must meet the following requirements: it shall not undergo chemical reactions with the medium under operating conditions ； Does not undergo chemical reactions with disinfectants or cleaning solutions under operating conditions ； The amount of harmful substances precipitating in the medium under operating conditions does not exceed the allowable limits ； There are no dead corners that cannot be cleaned and disinfected ； Easy to disassemble ； …… .
Just look for those that have FDA certification; E+H, Wegner, and Yasuko all have it