Here (Italy) it is common enough to use "Pirex" (actually "Luminarc", however "real borosilicate") glassware normally on gas (methane) stoves, you need to use

Here (Italy) it is common enough to use "Pirex" (actually "Luminarc", however "real borosilicate") glassware normally on gas (methane) stoves, you need to use a small net like this one (example): https://www.aviliahome.it/casa-e-cucina/speciale-casa-e-cucina/retina-rompifiamma-per-piani-cottura-20cm.html https://www.aviliahome.it/casa-e-cucina/speciale-casa-e-cuci... or (a more recent/new design) like this one: https://www.kasanova.it/casalinghi/diffusore-spargi-fiamma-mpt000451noc.html https://www.kasanova.it/casalinghi/diffusore-spargi-fiamma-m...