Installing, servicing, and removing an ignition interlock device with us is very easy and convenient. You may still have questions though. You may ask: How long do you have to wait to blow into interlock after drinking? The simple answer: You have to wait long enough for your body to process the alcohol. This post will further explain this topic.
How long do you have to wait to blow into interlock after drinking?
Can you drink the night before and pass an ignition interlock device test in the morning? One question we get a lot from our ignition interlock device customers involves how long customers have to wait after drinking before they can successfully take an interlock test. For example, can you drink the night before and pass the ignition interlock device test in the morning?
Passing your ignition interlock test after drinking
There’s no certain way to determine how long it takes to pass an interlock test after you’ve been drinking. How much you consumed and how long ago you drank both definitely matter. There are many factors that can all play a part in the amount of time it takes for your body to process alcohol.
There’s no easy answer
Providing answers to questions like “How long do you have to wait to blow into interlock after drinking?” isn’t a simple task because it depends on a number of things. Passing a breath test on an ignition interlock device after drinking isn’t just a matter of time or quantity.
Your breath alcohol concentration (BrAC), which is what an interlock device measures, is affected by several factors. Together, they all play a part in the length of time it takes your BrAC to return to zero which will allow you to successfully complete an interlock test.
If I drink at night, can I pass my ignition interlock test the next morning?
Sleep doesn’t guarantee that you’ll be able to pass an ignition interlock test. There are truly no shortcuts – sleep, energy drinks, coffee, water, or any solutions found on Google – that will ensure a successful breath test.
Plenty of sleep is definitely a good idea, but sleep itself doesn’t make alcohol disappear from your system. It simply allows a longer period of time to go by before you take your interlock test the morning after drinking. That gives your body more time to eliminate any alcohol in your system.
Don’t jeopardize your interlock program!
Questions like this are natural, but remember that it’s important to give top priority to your interlock program. Successfully blowing into your IID (ignition interlock device) every time is your goal, so don’t even try to drive if your soberness is in question.
Blowing violations could jeopardize your progress and the successful completion of your interlock program. If you have any questions about your interlock device, don’t hesitate to call our 24/7 customer service center.

Contact us about ignition interlock device removal
Questions like “How long do you have to wait to blow into interlock after drinking?” are easy to answer since you’ll speak to a real person when you call. Don’t try to navigate this stuff alone. We’re always just a call or click away.
Smart Start of Louisiana is the smart choice for ignition interlock because we offer top-notch customer service and a convenient process. Smart Start offers a toll-free 24/7 service line where you can always speak to a real person. We’re here to help you with any questions you have about what you need to bring to your interlock device removal appointment or other topics.
Looking for other products?
We’re the interlock pros. If you are looking for other compliance products and services, we suggest you check out our partner company.
Gulf Compliance Solutions







