Barrs Originals Soft Drinks Irn-Bru, 16.9 Fluid Ounce (Pack of 12)

Q: Does it stain carpets?

It doesn't stain the carpet any more than Coca-Cola or Welch's Grape soda does. In fact, because it is a lighter color, it should stain it a bit less. Of course, it all depends on your carpeting; some carpets resist stains better than others.

Q: Why is it when i buy at ~26 usd, then next day the price jumps to ~$42 usd. me thinks the amazon algorithms no like ir n bru

I was going to place an order when this was $31 (case of 12) and now same thing but price spike to $42. Hmm guess what I'm not buying through Amazon... what a rip-off.

Q: Does this version have quinine?

Yes it does. Ingredients include (typing what is on the bottle): carbonated water, sugar citric acid, flavourings (including caffeine & quinine), sodium benzoate (flavoring to protect flavor), FD&C Yellow No. 6 (Sunset Yellow FCF).