Primula Burke vs Bodum Side-by-Side Comparison

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 Bodum doesn’t come with any brewing instructions other than: spoon in the coffee, pour the water, seal the lid, and refrigerate. The instruction manual and the website do not recommend any brew ratio. This kind of freestyle brewing is much appreciated, but it would be nice if the brew vessel had measurement markings to perhaps indicate approximate ratios.

In our first brew test, we simply took one standard bag of coffee ground of 8 oz and tipped the lot into the brew decanter. Next, we carefully measured and poured in 40 fl oz or 1.2 liters of water - about an inch and a half from the top, and stirred the contents. This was of course a perfect ratio of 1:5 of grounds to water — a ratio often recommended for making a strong cold brew concentrate. This ratio is comparable to other non-immersion filter brewers we have tested such as the OXO and the Toddy.

In the first taste testing, we were not entirely satisfied with the results due to a slightly sour edge to the brew and a lack of complete smoothness. We, therefore, brewed again, but this time took our cue from the Toddy brewing method.

We kept the same ratio but did layered brewing. We put a third of the grounds in the bottom and poured in 400 ml (13.5 fl oz) or two glasses of filtered water. To even the flow of the water, we poured around the edges using a wooden spoon.  This mixture was left to settle and bloom for seven minutes undisturbed. 

Then, we poured another third of the grounds on top and another two glasses of water. We gently pressed the grounds into the water and did the same with the remaining quantities. We did not disturb the contents by stirring, but sealed the brewer and placed it in the refrigerator for 18 hours. The brew quality result was much improved.

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.

Decanting entailed a couple of operations. The first step is to activate the plunger, but you must make sure the lid is locked in place. After plunging, you just press down the lever on the lid, the spout will open, and you can pour. If you use the layered brewing method, it requires a bit of force to push the plunger down.

It operates much the same as any French press, however, since you’re making a cold brew concentrate, the design does leave some choices to be made. The manufacturer’s intention seems to be that you would leave the plunger depressed and store again in the refrigerator. This means that the concentrate will brew further. 

We decided, after plunging, to completely decant the contents in line with our testing parameters. After cleaning the brew vessel, we returned the concentrate, although the container was rather bulky for the yield volume. Therefore, you may prefer to decant it into a more suitable container. This is the only hassle with an otherwise excellent free brewing method.

The ease and speed of decanting exceed that of the similar freestyle OXO cold brew coffee maker, except that a separate decanter vessel is not provided. A 1:5 ratio yielded 25 fl oz or 750 ml of cold brew concentrate, which can easily be diluted at 1:2 or even 1:3 as you prefer.

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.

Bodum was perfectly easy to clean. The only things to be careful of are the two silicone seals. Because the grounds get quite compacted at the bottom, you will need a wooden spoon to level them out. We recommend hand-cleaning since it’s quick and easy.

The only inconvenience is a separate plunger lid and brewing lid. When storing, it's probably best to remove the silicone seal of the brewing lid and store it in the brew vessel for safe keeping. The brew lid needs to be stored separately.