Absolutely! Silicone nectar collectors are made with food-grade silicone, which means they will not leech harmful chemicals into your water or your vapor. While dabbing involves very high temperatures, silicone is designed to withstand high temperatures, too! Applying direct flame to a silicone dab rig might deform it, it still will not physically harm you if you use it. This is also true of silicone bongs, bubblers, and other popular styles of smoking pipes.