Frequently Asked Questions
Questions Parents Ask Before They Buy
Everything you need to know — answered directly, no guesswork.
Is the Nestush warmer safe for newborns?
Yes — completely safe. Nestush is BIS certified (Bureau of Indian Standards), confirming it meets Indian safety standards for electrical baby products.
The 37°C setting warms milk to body temperature, which is ideal for newborns. Never exceed 40°C for breast milk as higher heat destroys its natural nutrients and antibodies.
🩺 For newborns: always use the 37°C setting. Never exceed 40°C for breast milk.Is Nestush BIS certified?
Yes. Nestush holds BIS certification — the gold standard for baby product safety in India. The certification mark is printed on the product and its packaging.
Which bottles are compatible with Nestush?
The Nestush sleeve fits bottles up to 6cm in diameter. Quick reference:
| Bottle Type | Compatible? |
|---|---|
| Pigeon (standard neck) | ✓ Yes |
| Dr. Brown's (standard neck) | ✓ Yes |
| Mee Mee (standard neck) | ✓ Yes |
| Most standard Indian feeding bottles | ✓ Yes |
| Steel bottles (standard neck, ≤6cm) | ✓ Yes |
| Glass bottles (standard neck, ≤6cm) | ✓ Yes |
| Philips Avent wide-neck series (~7cm+) | ✗ Not compatible |
Does it work with steel or glass bottles?
Yes — material doesn't matter at all. Nestush works with plastic, glass, and steel bottles equally well. The only thing that matters is the diameter. 6cm or under at the widest point = works perfectly.
Can I warm breast milk in it?
Yes. Use the 37°C setting — this brings milk to body temperature and preserves all the natural nutrients and antibodies in breast milk.
⚠️ Never exceed 40°C for breast milk. Higher temperatures destroy its beneficial properties.How long does it take to warm milk?
| Milk Starting Temp | Approx. Time at 55°C |
|---|---|
| Room temperature | 5–10 minutes |
| Refrigerated (fridge-cold) | 10–20 minutes |
For fastest results, use the 55°C setting and make sure the bottle sits snugly in the sleeve with no gaps.
💡 Night-time tip: pre-warm the milk and leave it in the warmer near your bed — milk stays warm and is ready the moment your baby wakes up.What are the temperature settings?
Nestush has 6 discrete temperature settings shown on the LED display:
37°C — ideal for breast milk and newborns
55°C — fastest warming for fridge-cold formula or cow's milk
What is the minimum amount of milk needed?
The minimum liquid volume is 30ml. The sleeve wraps around the outside of the bottle, so bottle fit matters more than the amount of milk inside.
How long does one full charge last?
A full charge covers multiple warming sessions — typically enough for a full day of use. Each session runs until your set temperature is reached, then maintains it until you remove the bottle.
How fast does it charge?
Nestush charges fully in approximately 40 minutes via USB-C (5V/2A input) — from a wall socket, car adapter, or power bank.
⚡ 40-minute full charge via any USB-C source.