PolyScience 300 Series Review

Product Name:PolyScience 300 Series
Brand:PolyScience Culinary
PolyScience 300 Series Review (hover to zoom) (tap once to zoom, tap left, right, top, bottom to move image, tap outside of image to cancel)
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For those who are serious about storing food, a chamber vacuum sealer can be an amazing choice. This type of machine is popular for a range of reasons, including the fact that it can work with any type of food. It doesn’t even matter how much or how little moisture that the food has and you can even seal straight liquid if you want to.

Models like this one truly are designed for people who are serious about vacuum sealing. For example, you might turn to one if you regularly use sous vide cooking or if you hunt and need to store meat frequently.

While the model isn’t the cheapest on the market, it is still fairly reasonable for a chamber vacuum sealer. It also has an interesting collection of features that make it worth checking out.

Standard Features

The term vacuum sealers pretty much sums up the features that you can expect with any such product. So, the first basic feature is just the ability to remove air from bags. The second is sealing those bags afterward.

In most cases, the air is removed through the side of a bag and then it is sealed via a heat bar. This pattern is true for chamber vacuum sealers too but the process is somewhat different.

The key variation is that chamber models do the entire process within an enclosed space. Additionally, the air is withdrawn from that area entirely, rather than just from the bag.

Doing so is a powerful approach, as it means that there is no difference in pressure between the bag and the environment. As a result, liquid isn’t drawn toward the seal. This is the key reason why chamber models can seal liquids effectively, while external and handheld vacuum sealers simply cannot.

Extra Features

So far, all of the features mentioned are common across all chamber vacuum sealers. But, there are some unusual aspects associated with the PolyScience 300 Series as well.

For one thing, the model does have an accessory port. This allows you to seal other types of products with the use of a hose. The feature is commonplace with external vacuum sealers but is less frequent on chamber models.

That port may be especially appealing if you are looking to vacuum seal more than just bags. Now, in theory, you can still use some types of canisters and jars within a chamber vacuum sealer. However, this generally isn’t recommended and can damage them. So, if you want to use containers, an accessory port would be the way to go.

Like many other external models, the PolyScience 300 Series does allow you to set the seal time and the vacuum strength. However, it also has an additional advantage, as it has the ability to pre-set three cycles.

These pre-set options can be programmed with the specific settings that you’re interested in. Doing so can make the vacuum sealing process much more efficient if you tend to seal the same types of food on a regular basis.

Additionally, the vacuum sealer does have a specific marinade cycle. You can just marinate food by using the vacuum sealing process of a machine. However, this type of cycle tends to be more powerful overall.

User Experience

The average user experience for this particular model does tend to be positive. However, the model itself isn’t sold all that often.

This issue is common with vacuum sealers, particularly the more expensive options. While the PolyScience 300 Series is much cheaper than other models, it is still a significant investment and this explains why relatively few people purchase it.

Still, even with relatively few reviews, the PolyScience 300 Series is an effective machine and most users find that it works precisely as it is supposed to. Indeed, the vacuum sealer is more powerful and has more flexibility than many other similar models.

Nevertheless, as some online reviews mention, the vacuum sealer is a little challenging to get used to. In particular, some aspects aren’t user friendly and you may need to spend some time with the manual before you understand the whole process.

Comparing The PolyScience 300 Series To Other Vacuum Sealers

There are many similarities between chamber vacuum sealers but the extra features of the PolyScience 300 Series do make it stand out somewhat. Nevertheless, it also has the disadvantage of being significantly more expensive than some other options.

For example, a popular alternative would be the VacMaster VP210. This isn’t the cheapest chamber vacuum sealer on the market but it has a good balance of quality, price and reviews.

Like the PolyScience 300 Series, the VacMaster VP210 is built to last. Generally speaking, the VacMaster option would end up being better value for money unless you were specifically interested in one of the extra features from the PolyScience 300 Series.

One other model to consider would be the VacMaster VP112S. This is a less expensive model again and also has the advantage of being small, at least when compared to other chamber models.

Now, reviews for the VacMaster VP112S aren’t as good, which may make it a poor choice in some situations. Nevertheless, the model is better suited to personal kitchens and this may be a reason to look into it as an alternative.

Who Is The PolyScience 300 Series Best For?

The PolyScience 300 Series is still designed for the home kitchen. However, it is aimed at more serious users than many of the other models. With this in mind, it’s best for people who really do a considerable amount of vacuum sealing.

At the same time, the ability to pre-set would make it perfect for people like hunters, where you are consistently sealing the same type of food time and time again.



  • Durable and sturdy
  • Powerful pump
  • Ability to pre-set three cycles
  • Can be used to vacuum seal dry food, moist food and liquids
  • Large internal chamber
  • Accessory port


  • Heavy
  • Takes up a considerable amount of space
  • Not user friendly

Video: PolyScience 300 Series Review


The PolyScience 300 Series is a little unusual because the style and size seem to be most suited for the commercial environment, rather than home kitchens. Yet, despite this, the model is specifically targeted at personal use.

Realistically, many people will probably find that less expensive models are more relevant to them, such as the VacMaster VP210 or even the VacMaster VP112S.

However, the PolyScience 300 Series would still be relevant for some people. For example, it is an interesting model for people who want extra flexibility, as it is fairly rare to find a chamber vacuum sealer with an accessory port. It could also work well for people who are trying to avoid the VacMasterset brand entirely.

The end result is that the model isn’t horrible but it is only going to be useful to a relatively narrow audience.

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