Hello Tony, Buying the book I myself thought I would have a go at recreating hestons masterpieces, After scanning through a few of the recipes I realised that popping down the local tescos for ingredents would not help me accomplish my goal. So I spent about a week on google and finaily I found what I as looking for http://www.le-sanctuaire.com/. There based in san francisco and it appears there the only suppliers of these very specialist ingredients. If you want to order anything from the UK you have to phone them. I tryed phoning them but keeped getting a wrong number, I later found out the reason for this was because the number on there website does not include the district number for san francisco. So I googled and found the full number on this website http://www.yelp.com/biz/le-sanctuaire-san-francisco-3. Anyway I now have my chemicals and look foward to making Hestons hot and cold tea *crosses fingers*. Reply if you got any problems and Good luck! P.S you will need a laboratory scale, I found a nice 1 called "fuzion nitro mini card" on ebay for £18.
Some good general websites: http://www.infusions4chefs.co.uk/ and http://www.creamsupplies.co.uk
What really interested me was the whole freeze drying thing. I don't think there's such a thing as a 'home freeze drier', but I read somewhere that ice will sublime, albeit slowly, in a normal freezer if you leave it for long enough. I was wondering if you could speed it up by putting whatever in a box, then vacuum pumping the air out, and putting the lot in a freezer.
I tryed the creamsupplies website before, but the problem with them is there not the chemicals in there pure form i.e They have other chemicals mixed in them. As for the flash frozen foie gras , my sous chef has been buying them for the last year, Its really good for pan frying because the the foie gras wont melt before it's cooked. And as for freeze drying, you will have to drop the pressure to 0.06 of normal pressure you will need more then a simple dyson, to put it bluntly it cant be done without a frezze dryer. If you really wont a dryer your best bet is to keep on checking ebay for a second hand one, I have seen some sell for only £200. Good luck