- Brew Quality (50%)6.5/10
- Design (15%)7.2/10
- Ease of Use (35%)9.7/10
- Brew Quality (50%)9.0/10
- Design (15%)9.0/10
- Ease of Use (35%)8.9/10
The Hario Mizudashi and the OXO Compact are two very different types of brewers. The Hario is tall and slender and will easily fit the door of even a small refrigerator. Apart from this, it has no advantage as a cold brew coffee maker. The immersion filter is rather short, the brew ratio unfavorable, and it produces a sourish brew.
The OXO, on the other hand, produced one of the strongest cold brew concentrates in our hands-on testing. The OXO is also one of the easiest free-style brewers to use since it has convenient measuring markers for both the amount of grounds to use and the water level. While the OXO is one of our top brewers, the Hario Mizudashi is not a cold brew coffee maker we recommend you buy.
- Bouquet (10%)7.0/10
- Drinkability (70%)6.0/10
- Sediment (20%)8.0/10
- Bouquet (10%)9.0/10
- Drinkability (70%)9.0/10
- Sediment (20%)9.0/10
After 18 hours of brewing, the bouquet produced by the Hario Mizudashi can best be described as medium strength. The brew brought out a dominant nuttiness, but with underlying bitter and resinous notes. Sweet notes were very understated.
A cold brew coffee bouquet is always a good measure of the brewer’s performance. In repeated testing, we found the bouquet of the OXO Compact concentrate was quite strong. It tended towards deeper chocolate, earthy, or nutty notes. Sweet notes were less noticeable.
At first, we were surprised by the overall results of the OXO compact. Therefore, we did a second brewing for 14 hours and not 18 hours as per our standard testing procedure. Even so, the OXO Compact failed to bring out sweeter notes. Its ‘rainshower’ drip-and-leave brew method seems to be the key determining factor.
Compared to other cold brew coffee makers we tested, the Hario output tasted like a low-grade coffee. There was no real distinction to it and the texture was not smooth. We detected a mild woodiness indicating an under-extracted brew. With dilution, it tasted somewhat watery and sour with a bitter aftertaste.
We diluted the OXO concentrate at a 1:2 ratio with filtered water. The final drink had a smooth texture to it, and was only slightly sour. Chocolate, earthy, and nutty flavors were dominant. The brew tended to lack sweet or fruity flavors that other brewers were better at producing. While quite satisfying, it lacked overall excitement and complexity.
We thought this concentrate to be a good choice for ice cubes, using in deserts, or mixing with things like protein shakes. If you love a strong brew, we highly recommend the OXO Compact. One thing to consider with the OXO is brewing with less grounds to water, or brewing for a shorter time.
The Hario produced noticeable sediment, but most of it is relatively fine with only a few large granules present. The filter worked well, but at the same time its design may be a compromise for the poor quality of the brew.
The OXO Compact uses a simple reusable mesh filter. It didn’t clog the brewer and the decanting was quite swift and effortless. The sediment was very fine, but with some noticeable granules. While not the most thorough of filters, it was effective and speedy.
- Stopper / Lid (30%)7.0/10
- Filter (40%)6.0/10
- Build Quality (30%)9.0/10
- Stopper / Lid (30%)9.0/10
- Filter (40%)9.0/10
- Build Quality (30%)9.0/10
In the Box
- Box WDH: 4.9 x 4.3 x 11.8 in
- Brew decanter
- Detachable filter
The Hario Mizudashi comes in a very nice box. On the side are simple instructions highlighting its key features. There is no unnecessary plastic covering, and inside you find the decanter, detachable filter, and a handy instruction manual.
- Box WDH: 8.5 x 5.2 x 5.2 inches
- Decanter with stopper
- Brew vessel with mesh filter
- Rainshower and lid
The contents were well packaged and secure with the decanter neatly placed inside the brew vessel. The ‘rainshower’ dripper was on top. All key components are neatly labeled on the side of the box, so you know exactly what you’re getting. Overall, however, we felt that there was too much disposable plastic in the packaging.
- Heightwith Stopper Lid:11.5 in (294 mm)
- Base Diameter:3.7 in (94 mm)
- Width:5.4 in (138 mm)
- Weight:15.0 oz (425 g)
- Material:heat-resistant glass, polypropylene plastic
The Hario Mizudashi brew decanter is quite attractive in its design and this is a key reason why people choose to buy it. It fits easily into the door of even a small refrigerator and looks good on the table. The handle is fixed to the glass and cannot detach and there are a number of colors to choose from.
- Heightwith Stopper Lid:5.5 in (140 mm)
- Base Diameter:3.74 in (95 mm)
- Weight:7.0 oz (198 g)
- Material:borosilicate glass
The glass decanter has a neat aesthetic design with a simple logo and a measuring dot. It did, however, feel somewhat delicate, so we handled it with care.
Stopper / Lid
- Diameter:3.7 in (95 mm)
- Material:polypropylene plastic
- Additional Features:N/A
While we liked the slender and practical design of the Hario Mizudashi decanter, the lid design is not completely airtight. This we thought to be a fundamental design flaw especially for odor contamination in the refrigerator and excess oxidation while brewing. The lid itself has a snap mechanism so it doesn’t slip off accidentally.
- Diameter:2 in (52 mm)
- Additional Features:silicone seal
The silicone seal completely covers the cork stopper making it non-porous. However, the fit of the cork in the decanter is not so tight. The cork slips off easily so you should grip the decanter firmly with your hand.
- Length:6.5 in (165 mm)
- Diameter:3.3 in (85 m)
- Material:polypropylene frame, polyester resin
- Additional Features:detachable base
The best thing about the filter is the removable bottom which makes it easy to clean. Additionally, it’s small, stores away easily, and appears to be of high quality. However, the relatively short length of the filter and its lack of porousness created a weak and rather sourish brew.
- Diameter:2.7 in (60 mm)
- Material:polypropylene plastic & stainless steel
- Additional Features:red silicone gasket, spring valve
The detachable base of the OXO Compact is basically the filtration unit. The base is tight, yet easy to unscrew, and sports convenient alignment markers. The mesh filter fits snugly into the base.
Our concern here is the care needed in looking after parts — especially the red gasket. The filter seems durable enough, but it’s hard to judge the durability of the metal spring valve. Most cold brew coffee makers have simpler components.
The Hario Mizudashi is well built. The brew decanter is elegant and the plastic parts fit well. The filter is also easy to clean thanks to its removable end cap. However, the design is flawed in the short length of the filter and the non-airtight lid.
The OXO Compact is a very well-built product. It’s stylish, high quality, and all parts are certified safe. There are more parts to deal with compared to other cold coffee brewers. Additionally, only time can tell the longevity of the red gasket and the spring decanting valve. The carafe, while attractive, is somewhat delicate and the stopper is not the best.
Ease of Use
- Brewing (45%)10/10
- Decanting (35%)10/10
- Cleaning and Storage (20%)8.5/10
- Brewing (45%)9.0/10
- Decanting (35%)9.0/10
- Cleaning and Storage (20%)8.5/10
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.
Brewing with the OXO Compact was completely effortless. One reason for this is convenient markings. The base is also very secure and leak proof. Simply align the bar markings on its parts and you’re ready to go.
For grounds, you fill the brew vessel up to the bean icon — that equates to around 6 oz (170 g) Then, fill the decanter with 12 fl oz (355 ml) of water (marked by a dot). Next, you simply put the ‘rainmaker’ in place, slowly pour the water around, attach the lid, and allow your coffee to brew.
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 the OXO Compact requires you to place the brew vessel over the small decanter. It fitted perfectly without toppling off. As soon as pressure was applied to the spring valve, the concentrate started decanting.
Decanting took less than 5 minutes, but you can extract a little more if you leave it for longer. The mesh filter worked well, or comparable to a nylon filter.
One issue was the sensitivity of the decanting valve. We had to be careful not to accidentally touch it while moving the brew vessel because liquid spilled out very easily.
Cleaning and Storage
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.
The OXO Compact has more separable parts than most cold coffee makers. The carafe appeared somewhat delicate, but cleaning it was mostly a matter of rinsing or soaking in hot water. You can clean inside using two fingers, but it can also go in a dishwasher for a deep clean.
The silicone seal is easy enough from the cork stopper for cleaning. The brew vessel is wide, so it was easy to clean. However, you should be careful not to misplace the red gasket on the bottom.
For storage, the OXO Compact is really well thought out. The carafe sits in the brew vessel. Then, if you rest the lid and carafe stopper at an angle, the ‘rainmaker’ inverts for use as a lid for storage.