Can't find food safe brazing rods / hard solder in the UK.

[Rooinek]

I am doing some mods to my still over the winter and require hard solder to put a few of the pieces together. I have searched high and low and all the rods I have found so far contain zinc, even the silver solder. There is roughly between 10% and 40% zinc in these solders and from what I have read on here, zinc is not still compatible. Does anybody know where I could get some of the food contact safe rods please? I only need about 10 rods or so. Thanks.