They are just another heat treatment, more expensive than the flamers and steamers, and leaving behind the foam residue.

The size and cost of the equipment would make it a commercial or municipal technique.

Having looked at the case studies this technique has been used by some really big names in the U.K. Yeo Valley is one of the biggest organic producers in the U.K. their dairy produce is available in every supermarket, so I think that the system is definitely a valid and successful one.

I can understand why the steamer wouldn't be appropriate for home gardeners. Not a bad idea to suggest to my local municipal government for places where goats wouldn't be practical.

Thanks for the verifying the products' importance to the U.K. organics industry. I hope it catches on in the U.S..