Hands On: Lifeline 64 OZ, Double Wall Stainless Growler – Two Temperature Tests

This is a review of the Lifeline’s 7500 64 oz, Double Wall Insulated Stainless Steel Growler.


Front side of the label.  It Reads: Vacuum-Insulated Double-Wall. Vacuum insulated to keep liquids hot or cold all day.  Double-wall technology prevents condensation & keeps outside wall of bottle at a comfortable temperature.  Lightweight 18/8 stainless steel is 100% recyclable   It has no liner and will not retain odor or taste.  Stainless Steel.  BPA-free.


Reverse side of label (click for a larger view)


Inside of view of growler


Bottom of growler


Inside of lid


Product logo


Reverse side – Vacuum Insulated – 64oz/1.9L – 18/8 Stainless

For size comparison – next to a standard growler

Temperature Test 1:


I filled this growler full of cold water.  It ended up leveling out at 42.6 deg F.


Next, I placed this outside.  It was a warm day.  My CDN DTQ450X read 87.9 deg F at 6:17 PM


I brought the growler inside at 9:07 PM.  At that time it was 79.1 deg F.


The contents were still at an amazing 45.5 degrees.  That’s a loss of 2.9 degrees over nearly 3 hours of sitting in 87.9 – 79.1 deg F ambient temperatures.  That ends up being an average of 1.02 degrees per hour.  That’s crazy.

Temperature Test 2 – Side by Side Comparison with Standard Growler:

For this test I decided to ensure that each growler held the same mass of water.  I did that by weighing both growlers and then subtracting the weight of the growler itself using the tare feature on my Escali Primo scale.  Note that while the next two pictures were taken during that process, they do not show the weight of water that was used.  I’m including them only so that you can compare the weight of a standard growler vs this stainless growler.


Weight of a standard growler 1,113 grams.


Weight of this stainless growler 772 grams.  The stainless growler is 30% lighter.


After getting the same amount of water in each growler I decided to chill these down in my fermentation deep freeze.  Figuring that this would be a good way to get the contents close in temperature.  I let these chill for a few days.  They did get close in temperature but they were not identical.  The standard growler came out at 37.5 deg F and the stainless growler came out at 39.2 deg F.  Why the difference?  I’m not sure, but I theorize it’s related to the insulation capabilities of the stainless growler.


This is very early on in the test.  Notice the condensation on the standard growler.  Notice no condensation at all on the stainless growler.


The starting ambient temp was 82.1 deg F.  I picked up a Taylor 9940 Thermometer for this test because of it’s water proof probe and it’s long cable lead.


This picture was taken around first temperature check at 7:50 PM.  If you look closely you’ll notice a puddle of condensation running down this table.  The stainless growler continues to be bone dry.


 First temperature reading standard growler.  61.7 deg F.


First temperature reading stainless growler.  41.4 deg F.

Results:

In the first period of the test, from 6:03 PM to 7:50 PM.  The standard growler lost 24.2 degrees vs the stainless growler’s loss of a mere 2.2 degrees.  That’s a difference of 22 degrees!  1.23 degrees per hour vs 13.57 degrees per hour.  By the time you get to the last period, the standard growler is looking quite a bit better, but the fact is that it’s almost hit ambient temperature.  In all over a span of 3.8 hours, the stainless growler lost mere 4.4 degrees.

I tried to perform these two tests in semi-extreme environments.  Most of the time you won’t be just sitting a growler out in 80 or 90 degree weather.  Performance in more realistic room temperature scenarios should be all the better.

Carbonation:
The question has arisen as to whether it is designed to hold carbonated beverages.  I contacted the manufacturer and was told that yes indeed it is designed to work with carbonated beverages.  I’ve also tested this myself.  I chose to test with carbonated soda water, thinking that the high carbonation level would be a good test.  I let the carbonated water sit in the growler for four days.  It worked great.

This is a great growler.  It looks amazing and the insulation performance blew me away.  It also makes it into places that glass isn’t welcome like a pool or beach.

Lifeline 7500 Silver Stainless Steel Growler – 64 oz. Capacity

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10 thoughts on “Hands On: Lifeline 64 OZ, Double Wall Stainless Growler – Two Temperature Tests

  1. Anonymous

    I am curious about how it holds pressure. I know the Hydroflask versions had some issues which have now been resolved.

    Reply
    1. Chris Brewer

      According to the manufacturer it is designed to hold carbonated beverages. I’m planning to do some testing on that too.

      Reply
    2. graymoment

      +1 on holding pressure. That is my #1 concern with any growler, and the fact that this design has such a large opening makes me think that it’s not going to keep beer carbonated for a week or two like $5 glass growers will. Still, this is a great price for a thermos.

      Reply
  2. Ryan Mann

    I’m still trying to get a good one. The first one I ordered had a big dent in the bottom edge so I sent it back. I also ordered a smaller 40 oz. one and had to send it back because the lid would not stay on it. It didn’t have big enough threads in the metal part to mesh with the plastic lid and it would just pop right off. It looks like I’m suppose to be getting both replacements today. I really hope they are both in good functional condition this time.

    Reply
    1. Chris Brewer

      As I mentioned in a previous post, my first one had a small ding in it. The second one was wrapped better, this time in bubble wrap and it was in pristine condition. Amazon let me keep the damaged one to boot! If they don’t get the shipping down in these, I fear this will go the way of the paklab $30 carboys. I’m sure amazon tracks total profit and if this ends up losing them money shipping replacements it going to get whacked from the system. Hopefully, they get packaging figured out. In the mean time, this thing is a deal in my book.

      Reply
    2. Ryan Mann

      I wish I would have got to keep my dented one. How did you get them to do that? It was still plenty functional, but paying full price for something new, I didn’t want it to have a dent in it. My second one arrived better, but was still packaged terribly. It actually does have a very small dent in it, but it’s so small it’s not really noticeable.

      Reply
    3. Chris Brewer

      I suggested that they give me the damaged one for 1/2 price and that I would order another one at full price. After I suggested that, they said they would give me the first at 1/2 price and the second one for free, since it would take so long to deliver.

      Reply
    4. Ryan Mann

      Thanks. I didn’t know you could do that. I’ll remember that in the future if I get a damaged but usable product.

      Reply

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