Borosilicate Glass, Same Formula — But the Wall Thickness Changes Everything dingmu-thick-walled-borosilicate-glass Many buyers and home users have experienced this common frustration: most regular borosilicate glass pitchers on the market are noticeably thin-walled. They feel light and somewhat flimsy in hand — lacking that solid, premium quality feel. Some turn to soda-lime glass for a heavier, more substantial touch, but that comes with its own drawback — its thermal shock resistance is only around 50°C. With sudden hot-to-cold or cold-to-hot temperature changes, it cracks easily. In practice, it's really only safe for room-temperatu...