Going to get some flux from ebay (have a voucher, need to spend an extra £2 and can literally think of nothing else to buy)
Is there any meaningful difference between these two?
https://www.ebay.co.uk/itm/127082865827
https://www.ebay.co.uk/itm/266851263617
Asking here because they're both clearly china made and I'm sure I've seen them on AliExpress. Will one be more toxic or unsafe/harmful or is most flux fine?