Primula Burke vs Aquach Side-by-Side Comparison

Reviewed
Our recommendations are made independently through research and testing following our review procedure. We may receive commissions from purchases made via our links at no additional costs to you.
Tested Using Methodology v1.0
Updated Nov 28, 2022
Tested Using Methodology v1.0
Updated Nov 28, 2022
Primula Burke Cold Brew Coffee Maker Review
Aquach Cold Brew Coffee Maker Review
Coffee Maker type
coldBrew
coldBrew

Our Verdict

Overall Verdict

7.7
Overall Score
  • Brew Quality (50%)
    6.6/10
  • Design (15%)
    8.1/10
  • Ease of Use (35%)
    9.2/10
8.1
Overall Score
  • Brew Quality (50%)
    7.2/10
  • Design (15%)
    9.2/10
  • Ease of Use (35%)
    9.0/10

The Primula Burke and Aquach are two well-built brewers. Both have a uniquely designed lid and stopper. The Primula Burke has a double lid with a twist-to-pour feature that also allows easy brewing. The filter of the Aquach lifts out with a neat handle, and the stopper fits the same with or without the filter inserted. 

However, neither brewer features the best of filters. The Aquach has a fine laser-cut stainless steel filter which, despite its practical design, produces a below-average brew. Likewise, the Primula Burke filter, made of plastic and nylon, is even finer and, as a result, the brew is well below par. 

Despite these shortcomings, we would still recommend the Aquach brewer, especially for its attractive design and usefulness as a hot beverage brewer. The Primula, on the other hand, is a cold brew coffee maker that we do not recommend.

Brew Quality

6.6
Performance Scores
  • Bouquet (10%)
    6.0/10
  • Drinkability (70%)
    6.0/10
  • Sediment (20%)
    9.0/10
7.2
Performance Scores
  • Bouquet (10%)
    7.0/10
  • Drinkability (70%)
    7.0/10
  • Sediment (20%)
    8.0/10
6.0

Bouquet

7.0

The bouquet of the Primula was decidedly on the weaker side. It was light and sweet but our testers did, however, pick up a faint roasted note. This indicated that the brew was probably sub standard.

When testing the bouquet, we noted that the steel decanter lip provided the perfect chamber for sampling the coffee’s aroma. The concentrate had an understandably medium-strength bouquet. Notes were not harsh or even roasted. Instead, we detected a light chocolatey note with a sweetish overtone.

6.0

Drinkability

7.0
Primula Burke Drinkability

With a typical one-to-one dilution, the final drink was very light, watery, and somewhat sweet. In fact, even without dilution, it was still watery with little complexity. There was a slightly sour aftertaste, so not so satisfying. Although the brew is drinkable without dilution, it lacks excitement or complexity, which also means that the Primula is uneconomical for the amount of coffee ground used.

With the Primula, we would suggest a longer brewing period or brewing at room temperature. Either that, or using the hot blooming method to get a more substantial and richer brew.

Aquach Cold Brew Drinkability

The final drink, diluted at a one-to-one ratio, was comparatively weak. That’s not to say that it was unsatisfying. It lacked a complex body, but had a sweet overtone. Without dilution, a roasted and nutty flavor came through, but still, the aftertaste was not so rounded.

If you prefer a weaker brew with a milder taste, the drinkability of the Aquach is not bad at all. The brew ratio would suggest the coffee should be drunk as it is and not diluted. You could brew using the hot blooming method, brew at room temperature and for a longer time, or add flavor enhancers for a more robust drink.

9.0

Sediment

8.0
Primula Burke Sediment

Having to filter a large quantity of liquid means cold brewing can be time consuming. Convenience, however, comes at a price. Our repeated testing has found that the permeability of an immersion filter is key to producing a quality brew.

The Primula recorded very little sediment, which at the same time betrayed its fundamental flaw. The filter, as good as it was, lacked the permeability to produce a worthwhile cold brew coffee concentrate. In this case, the cost of a perfectly filtered brew was the quality of the brew itself.

Aquach Cold Brew Sediment

The Aquach, with its super-fine filter, produced little sediment with only fine granules. Although it didn’t measure up to our leading brewer with a bottom tap filter, it was pretty comparable. For an immersion filter, however, this suggested a lack of permeability contributing to a weak brew.

Design

8.1
design Scores
  • Stopper / Lid (30%)
    10/10
  • Filter (40%)
    6.0/10
  • Build Quality (30%)
    9.0/10
9.2
design Scores
  • Stopper / Lid (30%)
    10/10
  • Filter (40%)
    8.0/10
  • Build Quality (30%)
    10/10

In the Box

Primula Burke In the Box
  • Box WHD: 7.9 x 9 x 7 inches
  • Fully assembled unit 
  • Multilingual user manual leaflet

The Primula comes securely boxed with place holders and minimal plastic, but the package is nothing fancy. The unit comes fully assembled with a user manual inside that unfolds with instructions in English, French, and Spanish. Brew instructions, product care, and a few suggested recipes are included.

Aquach Cold Brew In the Box
  • Box WDH: 2.1 x 2.1 x 9.6 inches
  • Fully assembled unit
  • Brew guide & manual leaflet

The Aquach comes in a nice box with key parts labeled on the side.The box is double layered, but we felt the decanter was a little overpackaged with three layers of plastic bubble wrap. The brew guide and manual were inside the decanter, and there were instructions for brewing tea as well as cold brew coffee.

Decanter

Primula Burke Decanter
  • Heightwith Stopper Lid:
    7.9 in (200 mm)
  • Base Diameter:
    4.7 in (120 mm)
  • Width:
    7.4 in (180 mm)
  • Weight:
    19.5 oz (553 g)
  • Material:
    borosilicate glass & plastic

The decanter or brew carafe is made of thick borosilicate glass and enclosed in a plastic jacket. The jacket doesn’t detach and also forms a base cushion. While cleaning, we noticed that there is an additional silicone seal on the base of the decanter.

Aquach Cold Brew Decanter
  • Heightwith Stopper Lid:
    8.5 in (215 mm|)
  • Base Diameter:
    5.5 in (140 mm)
  • Width:
    6.3 in (160 mm)
  • Weight:
    borosilicate glass
  • Material:
    18.5 oz (526 g)

One way in which a cold brew coffee maker can distinguish itself is with a stylish decanter. Aquach does pretty well here. On the side is a measurement scale in milliliters and cups. The base, however, is a little wide, so it may not fit some fridge doors.

The flattish handle is very nice to grip, and the stainless steel lip and stopper are also very pleasing. Although the black silicone seal looks like any others, it’s better quality than we’ve seen on most brewers.

10

 Stopper / Lid

Stopper / Lid
Primula Burke Stopper / Lid
Primula Burke Stopper / Lid 1
  • Diameter:
    4.9 in (125 mm)
  • Material:
    plastic
  • Additional Features:
    open/close function, silicone seal

The lid comes in three parts. The outer section has a silicone seal for an airtight fit. The filter attaches to the bottom and you simply press it into the carafe. With the inner lid removed, you can easily pour in the water and then seal the carafe for brewing. When storing decanted coffee, you can open this lid to stir the contents before pouring. To pour, you turn the lid handle to the open spout position.

Aquach Cold Brew Stopper / Lid
  • Diameter:
    3.1 in (80 mm)
  • Material:
    stainless steel & polyurethane
  • Additional Features:
    silicone seal

The nice thing about this brew decanter is the filter which simply lifts out of the container and its resting base remains as it is. This means there’s little difference in how the stopper fits with or without the filter present. The silicone seal is better quality than what we’ve seen on other brewers.

6.0

Filter

8.0
Primula Burke Filter
  • Length:
     6.7 in (170 mm)
  • Diameter:
  • Material:
    polypropylene and nylon mesh
  • Additional Features:
    detachable base

The filter is solid and well-made. In terms of design for a cold brew coffee maker, the plastic jacket appears to be limiting. It is uncertain how much permeability this kind of filter design will allow for proper brewing. In test brewing, we found the filter design to be fundamentally flawed.

Aquach Cold Brew Filter
  • Length:
    5.9 in (150 hmm)
  • Diameter:
    2.6 in (65 mm)
  • Material:
    fine stainless steel
  • Additional Features:
    lifting handle

The Aquach filter design is quite unique. For one, the filter has a convenient handle. It rests on the stainless steel lip so you can simply lift it up. The filter is smooth with no sharp edges. There are also holes on the bottom of the filter.

What surprised us, however, is how finely it filters. The tiny laser-cut holes are arranged in small rectangles. Our brew tests showed that the high quality filter design was a little too fine to allow a good brew to develop.

9.0

Build Quality

10
Primula Burke Build Quality

Overall we love the high quality of the materials and the convenient design. The mid-range 1.6 qt capacity is also very convenient, and we like how the brewer is wider rather than taller. The only fault is not so much the build quality, but rather the ill-conceived design of the filter.

Aquach Build Quality

The Aquatch Cold Brew Coffee Maker is a really well-designed product. It looks very stylish, the handle is easy to grip, and the filter design is practical. The stainless steel lip and lid work well together and the silicone seals are of good quality too. We also loved that there are no plastic parts except for the knob on the lid. However, as our tests revealed, the fundamental flaw comes from the actual design of the filter rather than the overall quality of the build.

Ease of Use

9.2
usability Scores
  • Brewing (45%)
    9.0/10
  • Decanting (35%)
    9.0/10
  • Cleaning and Storage (20%)
    10/10
9.0
usability Scores
  • Brewing (45%)
    9.0/10
  • Decanting (35%)
    9.0/10
  • Cleaning and Storage (20%)
    9.0/10
9.0

Brewing

9.0
Primula Burke Brewing

The Primula filter takes around 3.5 oz / 100g of coffee grounds, which means about an inch to a half below the filter rim. After securing the filter onto the outer lid, you insert both into the decanter. Next, pour enough water to wet the grounds. After a couple of minutes, you slowly continue pouring water until the rising water hits just below the top of the plastic jacket. That’s about 40 fl.oz (1.2 L) or 6 measuring cups.  Finally, screw in the top lid so that the spout is also closed.

The brew decanter can sit in the door of your average 33- or 36-inch refrigerator but may be too big for an apartment-sized refrigerator. Brewing was relatively straightforward except for the lack of markers on the vessel. We also found the full carafe to be a little heavy. It weighed 4 lbs or 1.8 kg, so make sure to grip it firmly and avoid letting children handle it.

The brew filter takes around 80 g of coarse-ground coffee (14-16 tablespoons). We had to weigh the grounds, but they filled the filter to about an inch from the top. First, however, you should fill the decanter with water to the 600 ml mark — a third of the way up. Then, you insert the filter filled with grounds and continue pouring water until the water rises to the ‘Max’ marking. 

We found it best to pour slowly and to leave the filter handle up until the pour is complete. The base of the brew decanter may be a little wide for some refrigerator doors, but it fits well in a standard crisper box or on a roomier shelf.

9.0

Decanting

9.0
Primula Burke Decanting

We found that decanting worked best by simply lifting up the outer lid with the filter attached. Because the base of the filter is not permeable, it’s best to let the filter stand in a dish as quite a bit of extra brew still trickled out.

You can immediately remove the filter from the lid. We found a few granules of coffee had gathered around the edges so it’s best to completely rinse off the lid before putting it back. Once again, make sure the spout is closed to prevent coffee odors building up in your refrigerator.

As with any immersion filter brewer, decanting is as simple as removing the filter. The Aquach brewer has a really comfortable design. The high-grade stainless steel filter has a little flip-up handle so you can pull it out.

Not all immersion filters have holes on the bottom. We found this design quite favorable to brewing and faster at decanting. After decanting, you should rinse any grounds from the filter lip before inserting it again with the stopper.

10

Cleaning and Storage

9.0

Cleaning the Primula is effortless all round. It separates into seven parts. The filter parts and the lid can go on the top rack of a dishwasher while the decanter on the lower rack. It’s probably best to just rinse off the silicone seals. While cleaning, we discovered an additional seal at the base of the decanter. The plastic padding on the base gives a comfortable feeling when placing on the table, and peace of mind when storing away. We loved the quality of the decanter, except that it can be heavy for some when full, but the grip and pour is good.

The Aquach has a total of six parts. Including two silicone seals. The filter was a little long for hand cleaning, so we recommend a non-abrasive bottle brush. Because the filter is very fine, you’ll periodically need to descale it. This you can do by soaking it in a solution of water and baking soda, vinegar, or citric acid.

For the decanter, we were able to reach inside and hand wash it comfortably. However, all parts except the silicone seals can go in the dishwasher. It stores fully assembled, but check the complete dimensions to make sure you have space for it.