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Moso Bamboo Steamer
Complete Care & Maintenance Guide
ALWAYS |
NEVER |
| ✔ Hand wash with cold/ warm water only | ❌ Put in the dishwasher |
| ✔ Air dry completely before storing | ❌ Store sealed while damp |
| ✔ Cook on medium heat | ❌ Use high heat |
| ✔ Keep water below the steamer base | ❌ Let the pot boil dry |
| ✔ Oil lightly every few weeks | ❌ Soak in water for long periods |
| ✔ Store in a dry, ventilated spot | ❌ Store in plastic or airtight bags |
| ✔ Use silicone liners for food | ❌ Scrub with abrasive pads |
Before Your First Use
Your Happi Studio steamer has been carefully crafted and packaged, but like all natural bamboo products it benefits from a short seasoning process before its first cook. This step takes 10 minutes and sets your steamer up for years of excellent performance.
1. Unwrap and inspect
Remove all packaging carefully. Check each tier and the lid for any visible cracks, splinters, or damage. A small amount of natural bamboo fibre variation in colour — slight variations from pale yellow to deep amber — is completely normal and not a defect.
2. Rinse with cold water
Rinse every tier and the lid under cold running water. Do not use soap at this stage. This removes any residual bamboo dust from the manufacturing process and begins the natural seasoning process.
3. Soak for 10 minutes
Submerge all tiers and the lid in cold water for 10 minutes. This hydrates the bamboo fibres before the first heat exposure, preventing any risk of the bamboo drying or cracking during its first cook. This step is only necessary before the very first use.
4. Air dry completely
Remove from the water and stand each tier and the lid upright in a well-ventilated spot. Allow to air dry completely — this takes approximately 30 to 45 minutes. Never cook with a water-logged steamer. You are now ready for your first meal.
Pro Tip - Your First Meal
Your first two or three uses may produce a mild natural bamboo scent. This is completely normal and will fade completely after a few cooks as the bamboo seasons. Steam vegetables or dumplings for the first use rather than fish or strongly spiced foods — this allows the bamboo to season neutrally before absorbing more aromatic flavours.
During Cooking
The role of the stainless steel ring adaptor
The ring adaptor does two jobs simultaneously — it creates a stable, secure platform for the steamer, and it protects the bamboo base from direct contact with the heat source below.
Without the ring, the bamboo base sits directly on or close to the rim of the pot or wok. Over time this causes scorching at the contact points, uneven heat distribution, and premature wear to the bottom tier. The ring lifts the steamer clear of direct heat and distributes it evenly — which is why steaming with the ring consistently extends the life of the bamboo significantly.
Using the ring on a pot
Place the ring adaptor onto the rim of any standard pot with a rim diameter between 8 to 12 inch. The ring rests on the outside of the pot rim, creating a raised platform above the waterline. The bamboo steamer sits on top of the ring, held securely in place. The gap created by the ring between the pot rim and the steamer base is what prevents scorching — steam rises freely through this gap while the bamboo never contacts the metal directly.
Pro Tip - Best Pot For Steaming
A standard 10 inch saucepan or stockpot works perfectly. The wider the pot, the more stable the setup.
Using the ring inside a wok
A wok is an excellent vessel for steaming and is the traditional choice in many Asian kitchens. When using a wok, the ring adaptor sits inside the wok rather than on the rim — resting on the sloped interior walls of the wok above the waterline. The curved wok walls naturally cradle the ring and hold it in position. Place the ring inside the wok so that it sits level, then set the steamer on top.
The wok method has an advantage for longer cooks — the larger water volume means less frequent top-ups and a more consistent steam temperature. It is particularly well suited for larger batches of dumplings or bao buns where the steamer needs to run for 20 minutes or more.
Water level
Fill your pot or wok with cold water to a depth of 3 to 4 cm — enough to sustain a gentle simmer for up to 20 minutes. The water level must sit below the base of the ring adaptor and never contact the bottom tier of the steamer. Water touching the bamboo during cooking makes the base soggy and accelerates wear.
Important — Never let the pot boil dry
Check the water level every 15 to 20 minutesduring longer cooks. If you need to top up, always add boiling water from akettle — never cold water, which causes thermal shock to the bamboo base. A potthat boils dry will scorch the bamboo and is the fastest way to damage yoursteamer beyond repair.
Heat setting
Always cook on medium heat. Bring the water to a gentle simmer before placing the steamer on top. Once simmering, reduce to medium-low to maintain a steady, even steam. A gentle, consistent hiss is the sound you want — not an aggressive boil.
High heat is the single most common cause of bamboo warping and premature wear. Medium heat is always sufficient to cook any food thoroughly. It also produces better-tasting results — aggressive steam can make delicate foods tough and dry.
Pro Tip — Why the Ring Matters? Scorch Protection!
The stainless steel ring is specificallydesigned to keep the bamboo base elevated above direct heat. Never use thebamboo steamer without the ring adaptor correctly positioned beneath it. Asteamer used without the ring, or with the ring placed incorrectly, willdevelop scorch marks on the base of the bottom tier. Scorching cannot bereversed and shortens the life of the steamer significantly.
Lid discipline
Once the lid is on and steaming has begun, do not lift it during cooking. Every time you lift the lid you release the accumulated steam and add 2 to 3 minutes to your cook time. Check your recipe's steam time, set a timer, and trust the process.
When the timer goes off, tilt the lid away from you before lifting fully. The rush of trapped steam releases toward the far side, away from your hands and face. Always use a folded tea towel or oven mitt to handle the lid and steamer during and after cooking.
Stacking and tier order
When using multiple tiers, place denser foods with longer cook times in the bottom tier, closest to the heat source. Place lighter foods with shorter cook times in the upper tier. This ensures everything finishes cooking at the same time without the need to rearrange mid-cook.
After Each Use
What you do in the 30 minutes after cooking determines how long your steamer lasts and how good it looks. The process is simple — rinse, dry, air. Following these three steps consistently is the single most important care habit you can build.
1. Allow To Cool
Remove the steamer from the heat and set it on a trivet or wooden board. Allow it to cool to room temperature before washing — approximately 10 to 15 minutes. Never run cold water over a hot steamer. The sudden temperature change causes the bamboo fibres to contract rapidly, which leads to cracking over time.
2. Rinse With Warm Water
Rinse each tier and the lid under warm — not hot — running water. Use a soft cloth or soft-bristled brush to remove any food residue gently. Do not use soap on the bamboo. Soap strips the natural oils from the bamboo and dries it out, shortening its life significantly.
The silicone liners and melamine sauce dish are dishwasher safe and can be cleaned however you prefer. Only the bamboo steamer and lid require hand washing.
3. Dry Immediately
After rinsing, pat each tier and lid with a clean, dry cloth to remove the majority of surface moisture. Then stand each piece upright separately — tiers unstacked, lid off — in a well-ventilated spot. Do not stack the tiers while wet.
4. Air Dry Completely
Leave to air dry for a minimum of 1 hour before stacking or storing. In humid climates, allow longer. The bamboo must be completely dry — no moisture anywhere on the surface — before it is stacked or put away.
The Most Important Rule in This Guide
Moisture is the only real enemy of bamboo. A steamer that is stored even slightly damp will develop mould within days. Always — without exception — ensure the bamboo is completely dry before stacking the tiers or putting them away. When in doubt, leave it out for another hour.
Storing Your Steamer
Daily storage
The best storage for your steamer is on the counter, open, at room temperature. This is exactly the philosophy Happi Studio was built on — a steamer that earns a place on your counter should live there. Open-air storage in a dry kitchen is the single best thing you can do for bamboo longevity.
Cupboard storage
If you prefer to store your steamer in a cupboard, ensure the following conditions are met before putting it away:
- The bamboo is completely dry — no moisture anywhere on any surface
- The storage space is well-ventilated — not sealed or airtight
- The tiers are stacked loosely, not pressed tightly together
- The location is away from direct heat sources — not beside the oven or under a hot pipe
What to avoid
- Plastic bags or airtight containers — these trap any residual moisture and cause mould
- Damp under-sink cupboards or anywhere with condensation
- Direct sunlight for extended periods — UV exposure dries the bamboo and causes cracking
- Storing near strong-smelling foods — bamboo can absorb surrounding odours
Monthly maintenance
Regular use and washing gradually removes the natural surface oils from the bamboo. Monthly oiling restores those oils, keeps the surface smooth and resistant to cracking, and is what makes Moso bamboo genuinely improve with age. This process takes less than 5 minutes.
1. Choose your oil
Use any food-safe oil with a neutral taste and medium-to-high smoke point. The following work well:
- Coconut oil — most commonly used, naturally antibacterial
- Mineral oil (food-grade) — odourless and very long-lasting
- Vegetable oil — a practical everyday option
Avoid olive oil — it turns rancid in bamboo and develops an unpleasant smell over time.
2. Apply a thin coat
Apply a very small amount of oil to a soft cloth — less than you think you need. Wipe the oil evenly over the interior and exterior of every tier and the lid, following the grain of the bamboo. You are aiming for a light sheen, not a visible coating.
3. Allow to absorb
Leave the oiled steamer to stand uncovered at room temperature for 30 minutes. The bamboo will absorb the oil during this time. This is why less is more — excess oil that cannot be absorbed will sit on the surface and turn rancid.
4. Buff the excess
After 30 minutes, use a clean dry cloth to buff away any remaining surface oil. The bamboo should feel smooth and slightly silky — not greasy or wet. It is now ready to store or use.
How often you need to oil depends on how frequently you use and wash your steamer.
As a general guide:
Oil Every 3-4 weeks - Daily use
Oil Every 4-6 weeks - 2 to 3 times per week
Oil Every 6-8 weeks - Occasional use (1x per week)
Oil Every 2-3 months - Light use (a few times per month)
Troubleshooting
Even with the best care, questions occasionally arise. Here are the most common issues and how to resolve them.
Mild bamboo smell during the first few uses
Cause: Natural bamboo scent releasing during the seasoning process.
Solution: This is completely normal and resolves on its own after 3 to 5 uses. Steam vegetables or neutral foods for the first few cooks to season the bamboo without imparting strong flavours. The smell will disappear entirely as the bamboo seasons.
Food sticking to the bamboo
Cause: Silicone liners not being used, or liners placed incorrectly.
Solution: Always use the included silicone liners in each tier before loading food. The liners create a non-stick surface between the food and the bamboo. Food should never sit directly on the bamboo surface during cooking. If liners are in place and food is still sticking, check that the steamer is fully up to temperature before adding food.
Surface mould appearing
Cause: The steamer was stored before it was completely dry.
Solution: Wipe the affected area immediately with a cloth dampened with undiluted white vinegar. Do not use bleach. After wiping, place the steamer in direct sunlight for 2 to 3 hours — UV light is a natural antimicrobial. Allow to dry completely in fresh air before use. To prevent recurrence, ensure the steamer is completely dry before storage every time.
Bamboo appears dry, dull, or slightly cracked
Cause: Insufficient oiling, or the steamer has been stored in a very dry environment.
Solution: Apply two coats of food-safe oil, allowing 30 minutes between each coat for full absorption. Buff off excess after the second coat. For surface cracks that are purely cosmetic — not structural — the oiling process will improve their appearance significantly over 2 to 3 treatments. If a crack is structural, affecting the stability or seal of the tier, please contact us at hello@happistudio.com.
Steamer developing a persistent odour
Cause: Strong-flavoured foods have been steamed without liners, or the steamer has been stored damp.
Solution: Fill the steamer and steam only water with a slice of lemon and a small piece of ginger for 15 minutes. The lemon and ginger neutralise embedded odours naturally. Repeat once or twice if necessary. After this treatment, oil the steamer as per the monthly maintenance instructions to restore the surface.
Warping or uneven base
Cause: Extended use over high heat, or the pot boiling dry repeatedly.
Solution: Minor warping can sometimes be corrected by soaking the affected tier in cold water for 20 minutes, reshaping gently by hand while damp, and leaving to dry flat under a light weight. Significant warping that affects the steam seal is not correctable at home. Please contact us at hello@happistudio.co — we will advise on replacement.
Ring adaptor leaving marks on the bamboo
Cause: Normal contact between the stainless steel ring and the bamboo base during use.
Solution: Light surface marks from the ring are cosmetic and do not affect performance. They are a sign of regular use and part of the natural ageing of the material. A light application of oil to the affected area will minimise the appearance of these marks over time.