£5 note faced opposition in Britain:
Vegans, religious groups protest use of tallow to produce ‘longer lasting’ currency. A new £5 note issued by the Bank of England has generated concern and anger among religious groups, vegans and vegetarians after it emerged that it uses Tallow.

What is Tallow?
Tallow is derived from animal fats (suet) and is a substance that is also widely used in the manufacture of candles and soap.

Benefits of using Tallow
The new note is the first of a series based on polymer being issued by the central bank, as part of a drive to make notes that “last longer, stay cleaner and are harder to counterfeit than paper notes.” New £10 and £20 polymer notes are due to come out in 2017 and 2020 respectively. The bank estimates these notes last 2.5 times longer than paper.