Hario Mizudashi vs Bodum Side-by-Side Comparison

Brewing with the Hario Mizudashi is very straightforward. You don’t immerse the filter into water, but instead gradually pour water over the grounds once the filter is put in place. After pouring, you mix the grounds around a little.

There’s no real need for measuring. The prescribed 80g of coffee more or less reaches the top of the visible portion of the filter. You then add water until it reaches the level of the plastic neck.

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.

Decanting is about as effortless as brewing. You simply pop the lid off and remove the filter. You may want to leave the filter at an angle in a glass to catch any remaining concentrate as it drips out.  

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.

One thing the Hario Mizudashi has going for it is the practical filter design. The bottom comes off so it was very easy to clean. The slender brew decanter is too narrow and long for hand cleaning, but you can use a brush. All parts are also dishwasher safe. Once everything’s dry, store it fully assembled. Its height is the main concern when it comes to storage.

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.