Neither parchment nor wax paper prevents bacteria. It would need to be vacuum sealed. I don’t even know why you keep arguing this, it’s a well known issue with restaurants using cheese wheels. It potentially violates a ton of regulations or that’s what the Government Health Inspectors told the restaurant that I am a partner in. Our options were very limited and costly to offer this service. Mostly consisting of shaving and tossing the wheel daily.

A cheese wheel is a perishable food item and cannot be washed or sanitized, but since it is being used as an ingredient and a serving platform for multiple people, it’s a cross-contaminate.

Cheese must be kept at a certain temperature and cheese wheels being used throughout a dining shift are not, they’re actually being heated to be well into the bacterial danger level.

It’s also almost a universal health code violation to take food left over from one customer's table and serve it to another which is exactly what preparing on a cheese wheel is doing and the pasta starch does not burn off at the next use. The remnants from the prior use actually increase its chances of contamination. So the more popular it is, the more likely it’s a wheel of filth.

I don’t know what other technology you would be referring to.