Info

I'm designing a breed of cow that produces acid instead of milk. Part of the reason this is useful for my story is that the cows produce as much acid as a dairy cow would milk (through selective breeding/genetic modification.) Now, the dairy industry in 2013 produced 769 million tonnes of milk. Let's assume that the acid marked is half that (384.5 million tonnes). The dairy industry and a market has grown around this for a couple of reasons:

Protonation.

Research into the renewed possibility of an "alkahest."

And the criminal applications: if the acid was sold/stolen on the open market (or illegally) it would quickly become an agent for breaking through safes, etc (with the risk of damaging the internal components.) This would make the material resistant to the acid (see below) quickly become implemented as a security measure everywhere, which would create more and more ingenious ways of getting around that protection.

The acid is equal parts perchloric acid, aqua regia, and flouroantimonic acid. In other words, it's nasty stuff. A minute amount of unobtanium is used to keep them from neutralizing/oxidizing/destroying/whatever each other. The cow creates these from the special feed it is given.

According to this source, flouroantimonic acid, perchloric acid, and aqua regia (which has 2 components) are all held by PTFE (Which you might know as Teflon).

Question

How could a cow protect itself using that material?

By which I mean these two points:

• What would it need to eat (what would its diet be) to best synthesize the PTFE

and

• What would the PTFE line; The parenchymal tissue? The udder cavity? Would it wear out over time?

Further clarification on what answers must include:

• What changes to the diet of a regular cow, plus antimony supplements (for the acid) would need to be made to allow for the synthesis of the PTFE
• Would there need to be an additional lining of cells to produce the PTFE
• What organs/ducts/etc would the PTFE line

EDIT: You may use the acid to help you do whatever you need to do, such as mixing w/water for heat, using it to dissolve things, etc.

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Please do not use magic as an answer. Handwavium is already being used for the nonreactivity of the acid; not for the protection of the udder tissue. That's why I came here to ask it instead of saying "it's magic." I've set a premise; please don't unbuild it. I'm using both the reality-check tag and the science-based tag because I want a reality-check with science. Try to work with the premise I've set instead of saying "it's unreasonable for the calf/cows don't produce acid milk/it's impossible for that to happen and the science-based tag shouldn't be used." I'm using the science-based tag in this setting because I want science-based answers to a problem set on an already built premise, which is set in stone. My reality-check is specifically about how it can protect itself, not about whether this is a reasonable premise or possible situation.

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Thank you to all in the Sandbox for helping me develop this question, especially @Raditz_35 for all his expertise and guidance.

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For those interested, there is a slang code built around this substance:

"Cheese": When the magic keeping the acids stable degrades and the acids form a useless substance.

"Cream": When the acid is separated into its components to selectively harvest only one acid from its components.

"Ice Cream": When the acids are cooled and pressurized for transport.

"Burnt Milk": When pressurized acid explodes.

"Yogurt": When a gel is made out of the acid.

"Skim Milk": When water is added to the acid, invariably causing dangerous, explosive reactions.