Learn how to hide the smell of growing weed indoors with this simple and easy to follow tips and tricks guide. Everything you've ever needed to know! Cannabis cultivation is still illegal in many countries across the world, growers indoors try to eliminate the smell but this can be tricky especially during fl
How to Hide the Smell of Growing Weed Indoors
When growing cannabis indoors it can seem like a losing battle when it comes to hiding the smell. Cannabis plants let off intensely pungent aromas when flowering, and these aromas can filter out and end up stinking up your entire building; in some cases it may even end up sticking up the block next to you too. This can obviously lead to issues with the law, as well as opportunistic thieves that want to get their hands on your plants. That’s why you need to know the best tips and tricks regarding how to hide the smell of growing weed indoors.
If you want to make your grow as discreet as possible you’ll need to set up a decent air filtration system, as well as some sort of anti-odor method that covers, gets rid of or filters the smell of cannabis. We’re going to give you a run-down of some of the best methods that you can use to hide the smell of cannabis plants indoors, which can save you a lot of grief in the future.
How to Hide the Smell of Growing Weed Indoors | Before growing
Before you actually start growing cannabis indoors you’ll need to make sure that air gets in and out exactly where it’s supposed to; any leaks would be disastrous and would defeat the point of hiding the smell. Once you’ve checked everything and set up your filtration system (which needs to be strong enough to filter the amount of air in your grow tent or room) you need to make sure that your extractor and air intake system is creating negative pressure, which makes sure that all of the air inside the tent or room will be sucked out via your extractor fan rather than leaking out anywhere else.
If your grow tent walls seem to be filling up and expanding outwards your intake fan is much too strong and your extractor fan isn’t strong enough to absorb all of the new air being taken into the tent. When growing in a room it’s much harder to realize that this is an issue – you’ll know when you start to small cannabis outside the room.
How to Hide the Smell of Growing Weed Indoors | Anti-odor products
When it comes to getting rid of pungent aromas, you’ll need to pick your preferred method or system; each method has its own pros and cons, which is why it’s a good idea to test them out and then maybe combine two of them for the best possible results – your weed won’t be stinking up anywhere any time soon if you follow our advice. The largest difference between these methods tends to be how pricey they are, which is why it’s a good idea to combine more than one method at a time.
On the one hand you can use air fresheners or odor neutralizers, which can be found in gel or liquid format and are generally used as an extra measure – they usually aren’t potent enough to do the entire job themselves when plants are in bloom. On the other hand you can also use activated carbon filters, which usually come in fabric or metal casings and are used by attaching them to your extraction fan system; they can filter up to 90% of all odors. Last, but not least, you can also use an ozone generator, which is also installed to your extraction ducting, however you must not let the ozone come into contact with your plants.
One of the best anti-odor brands out there is called ONA; they produce many different products including air fresheners as well as products that can be sprayed to get rid of the smell of cannabis in a flash. They also come in blocks, which are more compact than the gel format, which slowly release a combination of pleasant, nice aromas that are perfectly safe.
ONA gel products can be used inside cannabis grow rooms or tents without damaging the plants at all. These products are generally used to back-up carbon filters by placing them inside your ducting. They’re also used to camouflage the aroma when drying cannabis or for areas near your grow room like the hall or your garage. You can also acquire sprayers and the like so that you get the absolute most out of it.
Neutralizers are products created from various different plant extracts and chemical products. They are capable of trapping, modifying or even destroying cannabis odor particles with incredibly efficiency. These types of products usually come with a small electric diffusor that is used to heat the mix and spray it around the room.
The Neutralizer is one of the best odor neutralizers that we stock. It’s made from various different essential oils from aromatic plants and it modifies cannabis odor particles perfectly, capable of covering large areas effectively. It does not affect your plants’ aroma and it’s perfectly fine to breathe in.
Activated carbon filters
Carbon filters are classic cannabis filtering devices. Not all carbon filters work the same when it comes to filter power and lifespan; you may want to pick a high quality device – you may need to shell out a bit more money. You’ll also need to pick one that’s right for your extractor or else it won’t work correctly.
One of the best activated carbon filters is the Anti-odor Filter Mountain Air, which is so efficient that it has won prizes for it. These high quality filters made in Canada can filter almost 100% or any aromas thanks to its high quality activated carbon and its innovative design and shape. They usually last for about two years, depending on how intensely you plan on growing cannabis. These filters are perfectly safe and eco-friendly.
Ozone generators are some of the most effective devices when it comes to getting rid of the smell of cannabis in grow rooms. They’re capable of destroying odor particles one by one, as well as any type of fungi or bacteria in the environment. When used, you need to take extreme care and make sure that no ozone gets out of its contained area in your ducting; it’s incredibly devastating for your plants and even for people.
A decent ozone generator is the Uvonair generator, which uses a diffusor crown to produce ozone; you’ll need to replace it every now and then. Like every other ozone generator on the market, you’ll need to place it right before your extractor fan outlet. It should have at least 5m of ducting in front for it to work properly. In order to avoid issues with ozone leaks, we recommend using a non-return valve in between the extraction fan and the ozone generator. Place your intake fan on the opposite side to the extractor, down low.
How to Hide the Smell of Growing Weed Indoors | 100% Odor Filter Combinations:
One of the best ways to guarantee total odor filtration and stop the aroma of weed getting out of your room or grow tent, is to use various products at the same time. Let’s have a look at some examples:
Odor Filter + Two Gels; This method involves installing a metal activated carbon filter in your ducting system and using two gels for extra precaution; one at the entrance to your house and another inside the ducting right before your extractor fan.
Odor filter + Neutralizer + Gel; You can install an activated carbon filter, odor-killing gel inside your ducting about a meter away from the extraction fan outlet and a Neutralizer at the entrance to your house.
Tube Ozone Generator + Gel or Neutralizer; This method consists of using a tube ozone generator in your grow room and either ONA gel or a Neutralizer at the entrance to your home. When using a tubular ozone generator, you won’t need a no-return valve to avoid leaks.
When do Autoflowers Start to Smell?
Cannabis cultivation is still illegal in many countries across the world, growers indoors try to eliminate the smell but this can be tricky especially during flowering. Eliminating smell in small grows can be achieved with carbon filters or by having a good air circulation, while big grows will need more drastic measures such as ozone generators and more than one filter.
1. When Do Autoflowers Start To Smell And Why?
That typical cannabis smell that all growers love comes from the production of trichomes. Trichomes contain cannabinoids and terpenes, and terpenes are responsible for the smell.
With autoflowers this happens between 4-6 weeks, depending on growing conditions and strain genetics. But the general rule is your plant won’t start to smell until it enters the pre-flowering stage.
Pre-flower of a Cream Cookies Auto plant on week 5, courtesy of grower stealthassassin from GrowDiaries
Sometimes the smell can start as early as 3 weeks into the vegetative stage but it gets MUCH stronger once the plant starts to produce buds and you will definitely need to control it.
From the 4th or 5th week of flower production, the smell can become a little hard to control. As cannabis enthusiasts, we all know and love the smell of top-shelf ganja, but if you have never cultivated weed before you may be unaware of just how overpowering the smell can be from weed that is still growing (or drying, for that matter).
This smell can, and usually will be, much much stronger than anything you have encountered in terms of ready-to-smoke buds. That fresh flower aroma is truly a smell to behold, but even if you live in a cannabis legal area, it is an aspect of weed growing that many cultivators want to be able to control.
Ok, how do we go about controlling the smell?
There are a few handy products on the market that are ready-made to help you with the job. If you are growing outdoors it can be a little tricky, but the smell coming off the crop will also be less intense than that of an indoor grow room. For indoor grows, there are a couple of key pieces of equipment you can use to help in masking any and all cannabis fragrances. We have already briefly mentioned a few options above, but let’s dive right in and take a deep look at all the options.
One thing to keep in mind is to never skimp on cannabis equipment. Sure, you can go online and find grow tents, carbon filters, fans, and whatever else for slashed prices. But, these are most likely inferior knockoffs that really won’t serve you. Take a cheap tent as an example. These will leak smells like nothing else, no matter how good the carbon filter is. Do yourself a favor and buy decent equipment the first time around, you’ll save a bunch of money in the long run.
2. How To Control Smells In The Grow Room
This is possibly one of the best methods of minimizing smell in an indoor grow. It’s a proven and tested method and works with grow spaces of all sizes. Carbon filters work by pulling odor and filter impurities from the air that is pushed through the filter by an exhaust fan.
It is important there are no air leaks and ensure all the smell goes through the filter so that nothing but odorless air comes out. Carbon filters come in different sizes (depending on the capacity of your grow room) and can be found in any grow shop.
A cheap solution in covering up the smell is using odor neutralizers. Unlike a carbon filter, odor neutralizers don’t clean the air, these products are designed to mask unpleasant smells. Growers may use air sprays or incenses to try to mask the smell but it won’t be much effective.
Odor neutralizers usually come in the form of gel and have active chemicals, in order to maximize the potential you have to keep them active constantly. Since they work on the chemical level, you have to be careful, by placing them close to your plants because you have a high risk of altering the taste and smell of the buds.
The downside to these products is they have a short effective period and you need to keep changing them, some growers don’t even consider this as a plausible solution unless you have a really small grow space.
Tip: Nowadays you can find environmentally safe odor neutralizers but we still recommend investing in a carbon filter.
An ozone generator is a device that can be used as an air purifier removing contaminants from the air. Ozone generators are usually used in big grow spaces with a large number of plants. They were more recently introduced in cannabis gardening and they claim to be an effective way to eliminate odor, impurities, and even pathogen bacteria from the room.
Despite the high cost of the device, it comes with the huge downside being harmful to the environment and causing lung irritation. Ozone generators are even banned as a product in some countries so we recommend talking to your local grow shop before using one.
This method isn’t really very effective, all autoflowers smell even though some may smell less than others. Choosing a strain with less odor may help in a small grow. Indica dominant strains with softer flavors and sweet terpenes as cookies and fruit, like Girl Scout Cookies Auto and Blackberry Auto tend to smell less.
But we all know every grower likes that unique cannabis smell, so in any case, we still recommend investing in an air filter and growing the strain you prefer, regardless of smelling too much or not.
3. In Conclusion
Regardless of the size of your grow operation we recommend investing in an air filter. The price can vary, starting at around 50 bucks and going up to 200 or more. This is the only way to be sure all the smell is eliminated thus avoiding problems with neighbors and the law.