Im in Europe where ISO standard borosilicate glassware is common. However it is softer and more easily scratched by sand grains than soda-lime glass. Sand can g

Im in Europe where ISO standard borosilicate glassware is common. However it is softer and more easily scratched by sand grains than soda-lime glass. Sand can get into food from vegetables or herbs. I had such scratched borosilicate tea kettle which shattered completely shortly afterwards. So this might be the core issue and now I take the disclaimers "never use if scratched" seriously. Lab reagents are much less likely to contain sand grains so it won't happen there.