We like it when brands decide to use their Super Bowl airtime to do some good; we like it even more when they try to do good works even beyond the Big Game, and that’s what Tostitos has done.

They have released a new bag that has a pretty amazing feature: when you exhale over the bag, a red steering wheel will appear if a chemical layered over the bag’s exterior reacts with alcohol in your breath. If that happens, eat the chips, but don’t drive.

But for the record, let us be very clear about one thing: this bag of Tostitos chips is NOT a breathalyzer, it can merely detect if there is any appreciable alcohol on your breath. So you may blow “red” and be fine to drive or you might be totally plastered.

To be safe, just don’t drive if you’ve been drinking, bag of chips or no.