That’s great. Thank you for that. I know that drinks aren’t cheap there. Guess I can get tonic there too?
Tonic might not be as easy!!
Definitely only supermarkets will have that, not local shops.
A bottle of Gibeys Gin cost me 493 baht in Chiang Mai .
Tonic water I find expensive as it is in around in 330 mls cans ,there cost about 14 baht.
However the limes are cheap !!!!
You will come thru Immigration at BKK and then on a domestic flight to Koh Samui. It then depends on how it have been ticketed.
Tesco, Big C, Makro stores, will be cheaper than 7.11 for booze!
Tonic water is really hit and miss even at the bigger stores, If you want real lemon, with your G&T, Big C is usually the only store that carries lemons!...
Keep in mind buying booze is limited to certain hours, more so in the larger stores...Edited: 6:54 pm, December 10, 2017
Ok, your question! I don't find Gin [other than the local brand] that cheap to buy in the 7Eleven on samui, and tonic can be hit and miss at times, but mostly its ok. Other than the time the factory in Bangkok got flooded several years ago there has not been an issue. There are restrictions on the times when you can buy booze at shops and supermarkets which don't always make sense to the tourist. Things will be cheaper in the larger supermarkets like Big C or Tesco Lotus but unless you have a car, not always easy to get too, the 7Elevens / Family Marts are just about every 50-100m in busy areas.
Assuming you are on ONE ticket, and you just transit at BKK collecting your bags at Samui, then when you buy your DF liquids at LHR they will be put in a sealed duty free bag. DO NOT OPEN THIS BAG! At BKK you will do immigration at the small internal transit point within the airport. You will also do a quick customs check where any liquid over 100ml NOT in the sealed DF bag will be confiscated, be it booze or perfume etc.
If you are on TWO tickets and have to collect your bags and check in again at BKK then we just put the DF liquids in our checked in luggage and never had an issue.
As TravellingMitch says, as long as all of your duty free is in the sealed STEB bags (make sure you tell them at LHR that you are transiting to a domestic flight), it will be fine.
Thank you all so much for the helpful advice. I’m fairly sure we are one ticket transitting through Bangkok. I’ll be sure to say at Heathrow that we are transferring to a domestic flight. Do they not use a sealed bag anyway?
No they don't always use sealed customs bags as a matter of course unless you insist. They will also include your receipt in the bag showing the date.
I've seen people lose bottles of expensive drinks and perfume because they split the bag to look at the purchases.
Is the bag just called a customs bag?