This has just appeared in my local Farm Foods, as it was not stocked previously.
We go through loads of the stuff, and normally get 36 or 48 at a time. Farm Foods always issues vouchers for £2.50 off a £25 spend and £5 off a £50 spend, but we never really get enough there to use them - until now....
So 60 litres of skimmed UHT milk now costs £22.70 using the voucher.
This is less than they were on special at Makro!