How to Use an Electric Breast Pump
Key Takeaways
- Always wash your hands and sterilise pump parts before first use - hygiene matters more than technique in those early days.
- Start on the lowest suction setting and increase gradually until you find comfortable expression level.
- A properly fitted flange (breast shield) makes the difference between efficient pumping and sore nipples.
- Pump every 2 to 3 hours to maintain supply, and store expressed milk in the fridge for up to 4 days or freezer for up to 6 months.
- Our top pick for first-time users is the Medela Solo for its simple one-button operation and Hospital-grade suction.
Also in this guide: Best Baby Bottles UK · Best Sterilisers UK
Using an electric breast pump for the first time can feel overwhelming. You're juggling a newborn, sleep deprivation, and now there's a machine involved in something that's supposed to be natural. The good news: electric breast pumps are designed to be straightforward, and once you've done it a couple of times, the process becomes second nature.
This guide walks you through everything from unboxing your pump to your first successful expressing session. We've assessed the most popular models available in the UK and spoken to midwives about what actually matters when you're starting out.
What You'll Need Before You Start
Before you sit down to pump, gather everything within arm's reach. You don't want to be scrambling for a bottle cap with one hand while holding a breast shield with the other.
Your breast pump and accessories: The pump unit, breast shields (also called flanges), connectors, valves, membranes, bottles, and lids. Most pumps come with two shield sizes (typically 21mm and 24mm). Check which fits before you start - more on this below.
Hygiene supplies: Anti-bacterial hand wash, a clean towel, and sterilising equipment for before and after. The NHS recommends sterilising all pump parts that touch breast milk before every session until your baby is 12 months old.
Comfort items: A glass of water (pumping can be dehydrating), your phone or something to watch, and a hands-free bra if you have one. Some mums also find a warm compress helpful before expressing to encourage let-down.
Storage containers: Clean bottles with lids, breast milk storage bags, or a dedicated milk storage container. Label everything with the date and time you expressed.
Step 1: Wash Your Hands and Assemble the Pump
Start by washing your hands thoroughly with soap and warm water for at least 20 seconds. This is non-negotiable - breast milk is a perfect breeding ground for bacteria, and you don't want to introduce anything unwanted.
Assemble the pump by connecting the breast shield to the connector, attaching the valve and membrane, then screwing on the collection bottle. Every pump is slightly different, so check your instruction manual for the exact assembly order. The Tommee Tippee Made for Me has a built-in closed system that makes assembly particularly foolproof - the membrane is pre-installed, so there's less to get wrong.
Step 2: Find the Right Shield Size
This is the step most first-time pumpers get wrong, and it's the most important one. The breast shield (flange) is the funnel-shaped piece that sits against your breast. If it's too small, it pinches and causes pain. If it's too large, it pulls in too much areola and reduces efficiency.
How to check your fit: When the pump is running, your nipple should move freely inside the tunnel without rubbing against the sides. Only a small amount of areola should be drawn into the tunnel. If you see your areola being pulled in and out repeatedly, or if your nipple hits the back of the tunnel, you need a larger shield.
Most pumps come with 21mm and 24mm shields. If neither works, replacement shields are widely available on Amazon UK. Medela offers shields from 21mm to 36mm, and the Philips Avent Hands-Free comes with two different shield sizes in the box.
Step 3: Position Yourself Comfortably
Sit upright in a comfortable chair with good back support. Your feet should be flat on the floor, and the pump should be on a stable surface at chest height. Some mums prefer to lean slightly forward to help milk flow into the bottle.
Place the breast shield over your breast, ensuring your nipple is centred in the tunnel. Press the shield gently against your breast to create a seal. Most modern pumps use a soft silicone cushion on the shield (like the Medela PersonalFit Flex) that helps create a comfortable seal without pressing too hard.
Step 4: Start Pumping on Low Suction
Turn on the pump and start on the lowest setting. This might feel strange at first - like a rhythmic tugging that's nothing like your baby's latch. That's completely normal. Electric breast pumps use negative pressure to draw milk out, which feels different from direct breastfeeding.
Most pumps have a "stimulation" mode that starts with fast, gentle pulls to trigger your let-down reflex (the milk ejection reflex). After a minute or two, the pump may automatically switch to "expression" mode with slower, deeper pulls. If yours doesn't switch automatically, manually increase the suction once you feel let-down.
What let-down feels like: Many women describe it as a tingling or warmth in the breasts. Some feel nothing at all - both are normal. If you don't feel let-down after 5 minutes on stimulation mode, try massaging your breast gently or looking at a photo of your baby.
Step 5: Increase Suction Gradually
Once milk starts flowing, slowly increase the suction until you find the highest level that's still comfortable. Higher suction doesn't necessarily mean more milk - it just means more discomfort. The sweet spot is where you feel effective milk removal without any pain.
The Medela Solo uses 2-Phase Expression technology that mimics your baby's natural sucking pattern, which many first-time users find helps them reach let-down faster. The PiAEK pump offers 4 modes and 9 suction levels, giving you plenty of range to find your comfort zone.
Step 6: Express for 15 to 20 Minutes
Allow the pump to run for 15 to 20 minutes per breast, or until milk flow slows to a trickle. You don't need to pump until completely empty - your body will regulate supply based on demand. If you're double-pumping (using a pump on both breasts simultaneously), you can finish in 15 to 20 minutes total.
How much milk to expect: In the first few days, you might only get a teaspoon (5ml) per session. This is normal and enough for your newborn. By week 2, most mums produce 60 to 90ml per session. Don't compare your output to others - every body is different.
Step 7: Store Your Milk Safely
Once you've finished, remove the bottle and cap it immediately. Label it with the date and time. The NHS guidelines for stored breast milk are:
- Room temperature (up to 25°C): Up to 4 hours
- Fridge (4°C or below): Up to 4 days (use the back of the fridge, not the door)
- Freezer (-18°C or below): Up to 6 months (best within 3 months)
Never refreeze thawed breast milk. Once it's been at room temperature for more than 2 hours, discard it.
Step 8: Clean Everything Immediately
Don't leave pump parts sitting in the sink. Disassemble everything that touched milk - shields, connectors, valves, membranes, bottles - and wash in hot soapy water. Rinse thoroughly, then either sterilise (steam, cold water solution, or boiling for 5 minutes) or pop them in the dishwasher if your pump parts are dishwasher-safe.
The pump motor unit should never be submerged in water. Wipe it down with a damp cloth if needed. Most pump manufacturers recommend replacing membranes every 4 to 6 weeks for optimal suction.
Common First-Time Pumping Mistakes
Using too much suction from the start. Cranking the pump to maximum doesn't get more milk faster. It causes pain, nipple swelling, and can actually block milk flow. Start low, go slow.
Wrong shield size. If you're in pain, the shield is probably the wrong size. This is the number one reason new pumpers give up. Measure your nipple diameter and match it to the shield size chart in your pump's manual.
Pumping too infrequently. Your milk supply works on a supply-and-demand basis. If you skip sessions or go too long between pumps, your body produces less. Set alarms if you need to - especially overnight in the early weeks.
Not enough hydration. Keep a large glass of water beside you and sip throughout the session. Dehydration directly impacts milk production. The NHS recommends around 2 litres of fluids per day when breastfeeding.
Expecting instant results. Electric breast pumps are efficient, but they're not magic. It can take 2 to 3 minutes for let-down to happen, and the whole session takes 15 to 20 minutes. Don't get discouraged if your first session feels slow.
When to Seek Help
Contact your midwife, health visitor, or a registered lactation consultant if:
- You experience persistent pain during pumping that doesn't improve with lower suction
- You notice cracked, bleeding, or damaged nipples
- Your milk supply seems very low despite regular pumping (remember: low output in the first week is normal)
- You develop signs of mastitis - breast pain, redness, warmth, flu-like symptoms, or fever. The NHS advises seeking medical attention promptly if you suspect mastitis.
Pumping should never be painful. If it hurts, something needs adjusting, whether that's your shield size, suction level, or technique.
Our Recommended Breast Pumps for First-Time Users
We compared the most popular electric breast pumps available in the UK, looking at ease of use, noise level, suction performance, and value for money. Here are our top picks for mums who are expressing for the first time.
Medela Solo Single Electric Breast Pump
The Medela Solo is our top recommendation for first-time users. It features 2-Phase Expression technology that automatically switches from stimulation to expression mode, one-button operation, and a closed system that prevents milk backup into the tubing. It's compact, quiet, and comes with a 24mm PersonalFit Flex shield. An Amazon reviewer noted: "So easy to use straight out of the box. The automatic switch between modes is brilliant when you're tired and can't think straight." Around 50dB during operation - quiet enough for early morning sessions without waking anyone.
Price: Around £90-£110 | Weight: 350g | Modes: Stimulation + Expression (automatic switch)
Tommee Tippee Made for Me Single Electric Breast Pump
The Tommee Tippee is designed specifically for UK mums who want simplicity. It has 5 massage modes and 9 expression modes, a built-in closed system (no separate valve assembly), and is compatible with Tommee Tippee bottles directly - no adapter needed. The lightweight design and USB rechargeable battery make it practical for use around the house. An Amazon reviewer said: "The fact it connects directly to Tommee Tippee bottles means less washing up and less faffing about."
Price: Around £70-£90 | Weight: 380g | Modes: 5 massage + 9 expression
Philips Avent Hands-Free Single Electric Breast Pump
The Philips Avent Hands-Free is the premium option. It uses Natural Motion Technology that combines gentle suction with nipple stimulation to mimic baby's drinking rhythm. The hands-free design means you can express while doing other things - a real time-saver for busy mums. It comes with two shield sizes and pumps up to 85 times per minute. An Amazon reviewer noted: "The hands-free design actually works. I was sceptical but managed to pump while making a cup of tea."
Price: Around £100-£120 | Weight: 450g | Modes: Expression + stimulation
PiAEK Electric Breast Pump
The PiAEK is a budget-friendly option that punches above its weight. It has 4 modes and 9 levels, an LCD display showing suction level and session time, and a rechargeable battery. With over 22,000 reviews and a 4.8-star average on Amazon UK, it's one of the most highly rated budget pumps available. An Amazon reviewer said: "Genuinely surprised by the quality for the price. The LCD screen is a nice touch and the suction is strong enough for daily use."
Price: Around £25-£35 | Weight: 320g | Modes: 4 modes + 9 levels
Nuby Ultimate Electric Breast Pump
The Nuby is a solid mid-range choice with a closed system and soft silicone breast cushion. It offers multiple suction levels and includes a let-down stimulation mode. Compatible with Nuby and most standard-neck bottles. A good option if you want a reliable pump without the premium price tag.
Price: Around £50-£70 | Weight: 400g | Modes: Stimulation + expression
Frequently Asked Questions
The Bottom Line
Using an electric breast pump gets easier with every session. The first time might feel awkward and slow, but by the third or fourth session, you'll have your routine down. Focus on getting the right shield size, start on low suction, and don't rush the process.
If you're buying your first pump, the Medela Solo is the safest bet - it's simple, reliable, and designed for first-time users. If budget is tight, the PiAEK delivers impressive performance for a fraction of the price. And if you want the convenience of hands-free pumping, the Philips Avent Hands-Free is worth the premium.
Whatever you choose, remember that expressing is a skill - and like any skill, it improves with practice. Be patient with yourself, and don't hesitate to ask your health visitor for support if you're struggling.
Emma reviews baby gear for My Baby Now - prams, car seats, monitors, toys and everything in between. Parent of two, she has first-hand experience of what actually matters when you're navigating sleep deprivation and a screaming baby in a car park.
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Last reviewed: August 30, 2026 · Evidence-based content · Contains affiliate links