"Great jar but be careful" star star star star_border star_border Like many others, lockdown led to me have a go at pickling veg and I've enjoyed it. These jars are good although I echo others who would like a weight to fit neatly over the contents - items can find their way around standard glass 'pebbles.' I have occasionally poured boiling water into these jars assuming it would sterilise them but today one cracked completely, so not a good idea! Finally, take care what you pickle. I tried sone red onions and the rubber seal stank forever. Mr Salbstein - 14 August 2021 support_agent A note from the team Thanks for your feedback. As you've found the jars aren't suitable for boiling water - to sterilise the jars we'd recommend using a sterilising tablet.