• Most burnt tastes in disposable vapes trace back to a dry wick or over-vaping, not a broken coil. On a commute, chain-puffing in cold weather can outpace the e-liquid's ability to saturate the coil. If a few waiting-room minutes doesn't fix it, the device is likely done for—retire it safely.
• Chain-vaping on a cold commute can dry out the coil faster than it can re-saturate.
• A burnt taste that persists after a 10-minute rest usually means the wick is scorched—retire the device.
• Keep the device upright and avoid pocket heat to prevent wicking issues.