On the buying side, from here: with the recycled bottle you have no idea what is inside, what syrup went into it, or how hot it was heated. The sealed jar at least has a name attached that can be asked questions later.

Ask the shop which district it came from and roughly when it was cut. If they know, they will tell you at length and probably show you photographs — we like talking about it. If they go vague on you, that vagueness is your answer.

@TrailTori also dont leave it to your last day. panic buying at the end of a trip is how you pay double for the worse jar

ok so: sealed jar from the shop, receipt, checked bag, tick the box, and read my own countrys page before i fly. and ill ask which district. thanks all, overthought this one as usual