FAQ

What should I do when I don't have a paper filter for the V60 dripper?

Please See below.

Show details（PDF）

What raw materials is HARIO paper filter made of ? Are any chemicals involved in the processing?

Our paper filter is made of natural pulp, and any chemicals do not involved in the processing.

[Common]
Can the XGS server be used on direct heat or IH heat?

HARIO's servers and pots made of heatproof glass cannot be used on heating equipment other than a microwave oven.
*Due to the materials used in the parts and components, some serv- ers and pots cannot be used in a microwave oven. Please read carefully the instruction manual before you actually use the product.

Show details（PDF）

[Teapots and Kyusu with a glass lid ]
The lid does not fit properly, and seems loose. Is it the wrong size?

The glass lids of our teapots and Kyusu are designed to perch on the pot. As a result, they may not fit snugly, and may move a little. Hold the lid in place when pouring tea.
If the lid is the wrong size for the pot, the difference will be notice- able - for example, the lid will be unstable when placed on the pot.

[Products with a handle that has a resin or metal band]
Can I remove the handle band from the glass when cleaning the product?

The handle band cannot be removed from the glass when clean- ing or using the product.
If a resin band comes loose when using the product, stop using the product, as breakage may occur.
If a metal band comes loose, you can tighten it with a cross-head screwdriver and continue using the product. Take care not to over- tighten it.

[Common]
Can the XGS server be used on direct heat or IH heat?

HARIO's servers and pots made of heatproof glass cannot be used on heating equipment other than a microwave oven.
*Due to the materials used in the parts and components, some servers and pots cannot be used in a microwave oven. Please read
carefully the instruction manual before you actually use the product.

[Common]
How can I tell that the water is boiling?

When you hear the boiling / bubbling sound and see steam coming out of the hole in the lid or the spout, the water is boiling.

[V60 Drip Kettle "BUONO"_VKB-120/100HSV]
Please let me know what kind of stainless steel is used for the body, lid, and bottom?

Body and lid: SUS304 Bottom: SUS430

There is a white substance (chlorine) inside the kettle. How can I remove it?

If you are worried about chlorine, put in some water and citric acid, boil it, and leave the kettle until it becomes cold. After that, wash the kettle with water.

Why is there rust on the surface? Please also let me know how to take care of it.

Stainless steel rarely gets rusty. But it could rust when salt or iron, which rusts easily, adheres to the surface. If it gets rusty, first, wipe it off with a sponge and cream cleanser. Then, rinse off the cream cleanser, wipe the body with dry cloth, and dry it completely.

I heated the kettle without water in it and the kettle became brown. What should I do?

You can rub it off with stainless steel wool and a cleanser for stainless steel.

[V60 Drip Kettle "BUONO" Copper_VKB-90CP]
Is it made of 100% copper?

Yes, it is made of 100% copper.

[Power Kettle_EPK-12 / V60 Power Kettle "Buono"_EVKB-80]
Water drips from the switch and bottom. Is it broken?

It's not broken. It happens due to the automatic switch-off system. Please see below.

Show details（PDF）

A white substance adheres to inside the pot. What is it? Can I continue using the pot as it is?"

Please don't worry. The white residue is formed when magnesium, calcium, iron, and other minerals contained in water deposit and adhere to inside the pot. The white residue is made of the ingredients that are naturally contained in water. Hygienically, there is no prob- lem.
*The white residue could cause corrosion and/or rust in the long term. We recommend you thoroughly wash the pot after use.
We also suggest that you regularly wash it using citric acid.

Please let me know how to take care of the power kettle.

Please see below for regular care:
1. Put in water up to the MAX line, add a tablespoonful of citric acid detergent or vinegar, and mix it. (Adjust the quantity of citric acid detergent or vinegar depending on the degree of uncleanness.)
2. Close the lid until it clicks and turn on the power kettle.
3. When the water boils, pour out the hot water. Wipe off the attached residue.
4. Thoroughly rinse it with water.
5. If an acid smell bothers you, put in some water, boil it, and throw away the hot water.
*When the water boils, the glass becomes very hot. Please be careful not to get burned.
** Instead of a citric acid detergent or vinegar a detergent for electric pots can also be used to remove scum.

I don't like the odor of the kettle. Is there any way to reduce it?

Please try the following:
1. Fill the kettle with water to the MAX line, and mix in approx. 30g of citric acid (or an equivalent amount of vinegar).
2. Replace the lid, boil the kettle and then leave to stand for approxi- mately 1 hour.
3. Throw away the water and rinse thoroughly with water. Repeat this procedure if the odor is not reduced.
*The odor (metallic odor or resin odor) may appear stronger when the product is heated.

[Power Kettle_EPK-12 / EVKB-80HSV / EVKT-80HSV / EVT-80-HSV]
Is it possible to use Japanese electric appliance (100V) in any place outside of Japan?

It is impossible.
The Japanese model (100V) is designed for Japan use only, please do not use in any place other than Japan with voltage converter. Doing so causes serious accidents and/or machine troubles.
※No warranty and no repair service will be applied using in other than Japan. The information is provided in the warranty section of instruction manual for each electric appliance.
For any inquiries for purchase of overseas models, please contact from here; CONTACT US

[Common]
Should I wash the coffee grinder before I use it? What is the best way to maintain this product?

Please wash before use. All parts of the coffee grinders can be disassembled and washed, apart from wooden products and those made with iron burr. Be careful when washing because there are many small parts that could be easily lost. Parts such as wooden parts or iron burr that cannot be washed. They can be cleaned by wiping with a dry cloth, or with a brush.

What are the general rules for coffee ground coarseness?

Please see below

Show details（PDF）

Where do I put the coffee beans into the coffee grinder? Where does the ground coffee come out?

Please see below

Show details（PDF）

[Coffee Mill Ceramic Slim_MSS-1]
How do I assemble the Coffee Mill Ceramic Slim (MSS-1)?

Follow the assembly instructions below.

Show details（PDF）

[Ceramic Coffee Mill_MSCS-2]
How do I assemble the Ceramic Coffee Mill (MSCS-2)?

Follow the assembly instructions below.

Show details（PDF）

I found a scratch or a crack like mark, on the bottom of glass bowl. Is it defective?

The liner mark possibly appears during a manufacturing process and could remain on the end product. However, this is not defective.

[Coffee Mill "Column"_CM-502C]
How do I assemble the Coffee Mill "Column" (CM-502C)?

Follow the assembly instructions below.

Show details（PDF）

[Coffee Mill smart G_MSG-2-T/TB]
How do I assemble the Coffee Mill smart G (MSG-2-T/TB)?

Follow the assembly instructions below.

Show details（PDF）

How do I take it apart?

Please see below

Show details（PDF）

[Aluminum Alloy Coffee Mill PRISM_MSA-2-SV/B]
How do I assemble the Aluminum Alloy Coffee Mill PRISM (MSA-2-B/SV)?

Please see below

Show details（PDF）

[Electric Coffee Grinder_EVCG-8/EVC-8]
Is it possible to use Japanese electric appli- ance (100V) in any place outside of Japan?

It is impossible.
The Japanese model (100V) is designed for Japan use only, please do not use in any place other than Japan with voltage converter. Doing so causes serious accidents and/or machine troubles.
※No warranty and no repair service will be applied using in other than Japan. The information is provided in the warranty section of instruction manual for each electric appliance.
For any inquiries for purchase of overseas models, please contact from here; CONTACT US

When the hot water boils up into the upper bowl, not all of it boils up - a little bit remains in the lower bowl. Why is that?

A little bit of water is meant to remain in the lower bowl by design. The water remaining in the lower bowl will keep the bowl
from boiling dry.

I have a syphon with a 5-cup capacity upper bowl and a 3-cup capacity lower bowl. Is it okay for there to be a capacity difference between the two bowls?

This kind of combination should be avoided. The length of the upper bowl's neck is different depending on the number of cups, so this kind of combination could lead to burning or damage.

What should I do if hot water isn't rising into the upper bowl?

If this happens, please review the possible problems and solutions
below:

The angle at which the upper bowl has been inserted into the lower bowl is askew.
→ Insert the upper bowl into the lower bowl straight.

→ The syphon rubber may deteriorate and require replacement depending on factors such as how long it has been used and frequency of use.

The eyelets in the filter have become clogged with ground coffee. → Clean out the filter using a toothbrush, etc. If this does not solve the problem, replace the filter (filters should be replaced about every 60 uses, depending on usage conditions).

→ There may be a defect in your product or its fittings. In such cases, please contact our customer service line (iico@hario.com). We apologize for any inconvenience.
Performing the adjustments indicated above should solve most issues.
If water still does not rise to the top bowl even after following the above instructions, please contact us for consultation
(iico@hario.com). We apologize for any inconvenience.

Coffee is falling back into the lower bowl. What should I do?

If this happens, please review the possible problems and solutions below:

Show details（PDF）

There is a crack on the lower bowl, even though the lower bowl has not been bumped against anything. How could this have happened?

It is possible that the bowl was scratched during use, and the scratch developed into a crack when heat was applied. Additionally, applying excessive heat (for too long or at too high a tempreture) can cause the bowl to boil dry or overheat, resulting in a raised temperature in parts of the glass.
These sudden changes in temperature or developing cracks may weaken the strength of the glass, leading to breakage. If the lower bowl cracks, stop using it immediately and replace.

Where can I buy alcohol for an alcohol lamp?

You can buy it at the following kinds of shops. The product may not be displayed on a shelf. Please ask a salesperson for assisrance,
-Pharmacy -Drugstore
-Outdoor goods shop -Coffee specialty shop
-Coffee utensil section of a leading supermarke.
There may be different product descriptions on the bottle. Please confirm with a salesperson before you buy.

[All cold brew coffee products]
Can I use this product for instant coffee?

This product is for coffee grounds made by grinding coffee beans.

Which level of roasting and coarseness are recommend- ed for the coffee grounds?

We recommend medium-fine dark roaster grounds.

[All cold brew coffee pots]
My pot is specifically for making X cups. Can I make fewer cups?

Due to the relationship between the size of the strainer and that of the pot, making fewer pots may mean that the strainer holding the coffee grounds is not sufficiently submerged in the water and the grounds is not sufficiently submerged in the water and the grounds will not be properly extracted. We recommend making the specified number of cups.

[cold brew coffee pots and filter-in coffee bottles]
Can I make other drinks (black tea, green tea, etc.) ?

Yes, but if coffee and tea are both made with the same strainer, odor from one drink may taint the other. If concerned about odor, soak in diluted household bleach or buy one of our separate strain- ers.

The strainer is blocked. Can I fix this?

Soak the strainer in boiling water, then use a soft sponge and neutral detergent to gently clean it. If the strainer is still blocked, wash it in diluted household bleach. Follow the instructions of your household bleach, as soaking for too long will make the plastic less durable.

What's the difference between this product and the cold brew tea pot / filter-in tea bottle?

There are differences in the design and functionality of the glass, the printing and the mesh size of the strainer. The strainer is finer because coffee grounds are finer than tea leaves.

[filter-in coffee bottles]
How do I open the strainer?

The figure below shows how to open it.

Show details（PDF）

Can I use the filter from the filter-in bottle?

Yes, you can.

Can I store this product lying down?

This product cannot be stored lying down because it does not have a seal and the contents will leak.

Should I remove the strainer or leave it in the bottle once my coffee has finished brewing?

To keep your coffee from becoming bitter, once it's finished brewing, remove the strainer and keep the bottle in your refrigerator.

[water dripper]
I have an earlier model of the water dripper. Can I use the lever packing of the N water dripper for my model?

The N water dripper have a different dripping method from the previous water dripper. The PTN-5 lever packing (PA-PTN-5) and PTN-5 shaft lever set (SH-PTN-5) for the N water dripper can be used as a replacement.

Cloth Filter - Please let me know when I should change the flannel.

There is no fixed maximum use of the flannel because it varies depending on how you use it. As a guideline, we suggest you change it when the inside nap comes off after repeated washing and squeez- ing or when an extraction time becomes short.
If it is used once a day in an ordinary household, it should probably be changed once a month.
*When it is not used for a long time, put the wet flannel into an airtight bag with a zipper or seal it in a plastic wrap, and store it in a freezer.

Cloth Filter - why do I need to keep it soaked in water?

If it is sun-dried after being washed, the coffee ingredients that are absorbed in the flannel oxidize and add unwanted smell to the next brew. It should never be dry if you want to brew delicious coffee. Please wash it carefully after use, put it in water and keep it in a refrigerator.

Cloth Filter - which is inside or outside?

The cotton cloth without nap should be outside. When the fluffy nappy part gets wet, coffee is extracted through the fine space in the weave.

[Common]
What's the best way to froth milk (using any HARIO milk frother)？

Please see below

Show details（PDF）

These products cannot completely froth the milk, so depending on the condition of the milk, a small amount of liquid may remain.

These products are specifically intended to be used with milk.

Why doesn't all the milk froth (using any HARIO milk frother)?

These products cannot completely froth the milk, so depending on the condition of the milk, a small amount of liquid may remain.

[Creamer "Z"_CZ-1] [Creamer "Qto"_CQT-45]
What is the best way to clean the Creamer "Z" and Creamer "Qto"?

Only the shaft should be rinsed with water directly. （*The motor handle cannot be cleaned in water.）  Be careful not to expose the motor handle to water.

Show details（PDF）

Water does not come out. Why is it?

Please try the following:

Show details（PDF）

Please tell me how to take care of a coffee canister.

Please check the following

Show details（PDF）

Handling Precauons for Filter Mesh

Please see below

Show details（PDF）

[All cold brew tea pots]
Can I put hot water in this product?

Yes, but be aware that the heat of the water may loosen the silicone or resin parts.

Can I make coffee with this product?

Our cold brew tea pots' mesh strainers (filters) have a coarser design than the ones in our cold brew coffee pots, as they are designed for tea leaves. This means that coffee grinds may fall through the filter. We recommend using one of our dedicated cold brew coffee pots to make coffee.

[All cold brew tea pots(except those with a strainer)]
Where should I put the tea leaves?

Please see below

Show details（PDF）

[filter-in bottle]
How do I attach the filter?

The figure below shows how to attach it.

Show details（PDF）

Can I store this product lying down?

This product cannot be stored lying down because it does not have a seal and the contents will leak.

[Common]
Can the XGS server be used on direct heat or IH heat?

HARIO's servers and pots made of heatproof glass cannot be used on heating equipment other than a microwave oven.
*Due to the materials used in the parts and components, some serv- ers and pots cannot be used in a microwave oven. Please read carefully the instruction manual before you actually use the product.

Show details（PDF）

[Products with a handle that has a resin or metal band]
Can I remove the handle band from the glass when cleaning the product?

The handle band cannot be removed from the glass when clean- ing or using the product.
If a resin band comes loose when using the product, stop using the product, as breakage may occur.
If a metal band comes loose, you can tighten it with a cross-head screwdriver and continue using the product. Take care not to over- tighten it.

[Teapots and Kyusu with a glass lid ]
The lid does not fit properly, and seems loose. Is it the wrong size?

The glass lids of our teapots and Kyusu are designed to perch on the pot. As a result, they may not fit snugly, and may move a little. Hold the lid in place when pouring tea.
If the lid is the wrong size for the pot, the difference will be notice- able - for example, the lid will be unstable when placed on the pot.

About The Mill with Mesh Sifter

Watch the YouTube video.

Handling Precauons for Filter Mesh

Please see below

Show details（PDF）

Please let me know how to use it for other than plain white rice.

Please refer to the following:
Sweet red bean rice
Sprouted brown rice
Brown rice <Heating once>
Brown rice <Heating twice>

Do I need to treat the pot before use?

The glaze on the pot surface keeps moisture from being absorbed by the pot, so treatment is unnecessary.

Can I use pre-rinsed rice? Can I use pre-rinsed rice?

Yes. Please refer to the rice-cooking method for pre-rinsed rice.

I can't get the burn marks to come out of the pot. What should I do to remove them?

Put about 400 mL of hot water (or cold water) mixed with 2
teaspoons of baking soda into the pot, then simmer on low heat.
After it has simmered for 5 min., turn off the heat and let it sit for 30 min. After this, gently scrub the pot with a sponge soaked in dish washing detergent. (Do not apply excessive pressure when cleaning.)
This will help remove not only burn marks, but also starch residue from white rice that wasn't removed from normal washing.

Is there a keep warm function?

Because the pot cooks rice when direct heat is applied, there is not a keep warm function.

Can cooked rice be left inside the rice cooker?

Please see below

Show details（PDF）

Can I use an IH stove or microwave oven?

No.
(It can be used with the direct flame from a gas cartridge stove.)

Can I use it to cook food other than rice?

It is not suited for cooking other foods because it thicker than a normal pot.
Also, using it took cook strong smelling foods (curry, etc.) will leave a residual smell on the rice.
Additionally, do not use the rice cooker to prepare tempura and other deep-fried foods, as this may cause a fire.

I don't understand how to attach the latch.

Follow the assembly steps below.

Show details（PDF）

Can the pot be used on a gas hob equipped with an Si sensor?

It can be used if the Si sensor is turned off.
The Si sensor may turn down the heat if it operates during cooking. For details on how to turn the Si sensor off, contact the gas cooker manufacturer.

The whistle doesn't make a noise any more. Why is that?

Please see below

Show details（PDF）

I can't seem to make rice well. What should I do?

The following items need to be considered if you continually make mistakes cooking rice.

Show details（PDF）

Can I make rice porridge?

There is a recipe for making one measure ( Rice:1 go = 150g) of rice porridge included.See the recipe for details.
However, please note that you cannot make more than one measure of rice porridge, as doing so may cause the rice porridge to boil over.

The instruction manual says that when heating oily food with a microwave, please remove the lid. What is meant by oily food?

It means food that was cooked using a lot of oil, e.g., fried food, Chinese food, curry, etc. When you fill a container with this kind of food and heat it in a microwave, the lid may melt. This is because the temperature of the oil attached to the lid exceeds the highest tem- perature that the lid can withstand.
When you heat this kind of food in a microwave, fill the container not up to 80%, or remove the lid.

Do I need to be careful when microwaving certain foods?

Please see below

Show details（PDF）

What should I do to prevent rice from boiling over?

Please see below

Show details（PDF）

When I cook, the rice is only half done. How can I improve it?

There are two possible reasons.
[Reason 1]
Rice isn't soaked in water long enough.As water does not permeate to the center of the rice, it becomes half done even if you follow the recipe. We recommend that you soak rice in water for more than 30 minutes in summer and more than 60 minutes in winter.
[Reason 2]
The rice is not heated long enough or allowed to sit after heating long enough. Depending on the characteristics of your microwave or the kind of rice, you may need to heat rice longer or let it sit longer after heating.
[Suggestion]
Sprinkle a tablespoonful of water (15 cc) over rice immediately after it is cooked and mix it thoroughly. Replace the lid and heat it for about one minute with the wattage level you used to cook it first. Again, mix it thoroughly, put the lid on, and let it sit for about 5 minutes.
*For wash-free rice, soak it in water 30 minutes longer.

The cooked rice is hard. How can I make it softer?

There are two possible reasons. [Reason 1]
Insufficient waterIf the water level is 1-2 mm lower than the "water line" (a shortage of 15-30 ml, one or two tablespoons), you will find the cooked rice very hard.
[Reason 2]
OverheatingEven if you accurately follow the water quantity and the heating time length, you may find the cooked rice hard due to over- heating. This, again, depends on the characteristics of your micro- wave or the kind of rice you use.
[Suggestion]
Cook rice as usual, shortening the heating time by 1-2 minutes. If you still find the cooked rice hard, try the above suggestions.

How to "cook rice twice".

Please refer to the following:

Show details（PDF）

Can I cook rice using a microwave of over 700w?

Please see below

Show details（PDF）

Please let me know how to cook rice deliciously by using a microwave without a turntable.

Shorten the cooking time by 1-2 minutes vis-à-vis the above guide- lines. Please refer to the following:

Show details（PDF）

Your recipe booklet has a recipe for Chinese rice por- ridge. Can I make a Japanese white rice porridge with it?

Please try the following recipe.

Show details（PDF）

I cannot remove the burned food from the bottom. Please tell me what I should do.

Please clean the pot as follows:

Show details（PDF）

What is the maximum hardness of ingredients it can stand?

Some unripened fruit and hard ingredients do not crush. Please use ingredients that are soft enough to be crushed to some extent with fingers. Please also refrain from using frozen ingredients. Use them after defrosting them.
When you microwave hard ingredients such as pumpkin beforehand to make it easier to process, please make sure you remove the lid and shaft.

[common]
Are HARIO product BPA free?

Yes, all HARIO products are BPA free.

[silicone]
Please provide some guidelines for taking care of silicon rubber used in cake molds.

Due to the characteristics of the silicon rubber, oil residues that are hard to remove may look white. Wash it using a neutral detergent and boil it in water with baking soda. Please read carefully the directions for use of baking soda beforehand.

What do you mean by "difference" in "heatproof temperature difference"

Please see below

Show details（PDF）

My heatproof glass has broken. Why is that?

Heatproof glass is strong against heat. But it is not tem- pered/toughened glass. It is as strong as usual glass against impact. Please handle it very carefully. For more details, please refer to
"Glass Types".

What causes bumping?

Please see below

Show details（PDF）

Can I clean with a dishwasher?

Yes, you can for HARIO's heatproof glass products. But for attached parts and components, please follow their directions for use. Also observe your dishwasher instructions carefully.

Something is sparkling in the glass container. What is it? Is it harmless?

They are called flakes. They can be seen when you look into a glass vacuum bottle.
Chemical compounds such as magnesium and calcium present in water react near the glass surface to form and accumulate ion crys- tals. They sparkle. They are minerals and harmless.
To remove them, put vinegar or a citric acid detergent (add ten parts of water to the liquid) in a glass container, leave it for more than one hour, and wash it with a sponge, etc. to avoid scratching the glass.

How can I take care of the glass?

Please see below

Show details（PDF）

Can I put cold water in products marked as "For use with boiling water" or "For Microwave Use"?

Both hot and cold water can be used in these products. It is also possible to put boiling water in products marked as "For Microwave Use".
→Details on Intended Use of Products

I cannot remove the burned food from the bottom. Please tell me what I should do.

Please clean the pot as follows:

Show details（PDF）

[common]
Are HARIO product BPA free?

Yes, all HARIO products are BPA free.

[silicone]
Please provide some guidelines for taking care of silicon rubber used in cake molds.

Due to the characteristics of the silicon rubber, oil residues that are hard to remove may look white. Wash it using a neutral detergent and boil it in water with baking soda. Please read carefully the directions for use of baking soda beforehand.

What do the marks on the product pages of the HARIO's website represent?

Please see below:

Show details（PDF）

Is it possible to use Japanese electric appliance (100V) in any place outside of Japan?

It is impossible.
The Japanese model (100V) is designed for Japan use only, please do not use in any place other than Japan with voltage converter. Doing so causes serious accidents and/or machine troubles.
※No warranty and no repair service will be applied using in other than Japan. The information is provided in the warranty section of instruction manual for each electric appliance.
For any inquiries for purchase of overseas models, please contact from here; CONTACT US

About SPARE PARTS

Please check from [About SPARE PARTS] below.

About SPAREPARTS