Dairy Parlour Hygiene: A Practical Routine for Cleaner Milk & Healthier Cows

Why Parlour Hygiene Is Non-Negotiable

Milk quality, somatic cell counts (SCC), bactoscan results, and mastitis rates are all directly linked to how well your parlour hygiene routine is executed. A consistent, thorough routine protects your milk contract, your cows, and your bottom line. This guide sets out the key steps every dairy farmer should have in place.

Pre-Milking Routine

What happens before the cluster goes on is just as important as the milking itself.

• Forestrip each quarter: Strip 2–3 squirts from each teat into a strip cup before attaching the cluster. This removes the highest-bacteria first milk and lets you spot clinical mastitis early.
• Teat preparation: Clean and dry teats thoroughly before attachment. Options include:
  • Pre-dipping with an approved teat dip (contact time of at least 30 seconds, then wipe dry)
  • Individual teat wipes (single-use)
  • Warm water and individual cloths (one cloth per cow, laundered between milkings)
• Check teat condition: Look for cracked, sore, or hyperkeratotic teat ends — these are mastitis risk factors that need addressing.
• Attach clusters promptly: Aim to attach within 60–90 seconds of teat stimulation to take advantage of the oxytocin let-down response.

Post-Milking Teat Dipping

Post-milking teat dipping is one of the most effective mastitis control measures available. It works by killing bacteria on the teat skin before the teat canal closes (which takes around 30 minutes post-milking).

• Use an approved post-dip product — iodine-based (0.5–1%) or chlorhexidine-based
• Ensure full teat coverage — dip or spray immediately after cluster removal
• In cold weather, use a product with added emollient to prevent teat chapping
• Do not allow cows to lie down for at least 30 minutes post-milking — keep them standing with fresh feed at the barrier

Cluster & Equipment Hygiene

• Rinse clusters with clean water between cows if milking known mastitis cases last
• Always milk clinical mastitis cows last and use dedicated clusters where possible
• Check liners regularly — replace every 2,500 milkings or every 6 months, whichever comes first. Cracked or perished liners harbour bacteria and cause teat damage.
• Check pulsation rates and vacuum levels at least annually — irregular pulsation is a major mastitis risk factor

CIP (Clean-In-Place) Cleaning Cycle

A correct CIP cycle after every milking is essential for bactoscan compliance and equipment longevity.

1. Pre-rinse: Flush with warm water (35–45°C) immediately after milking to remove milk residues. Do not use hot water — it bakes protein onto surfaces.
2. Hot alkaline wash: Circulate an approved alkaline detergent at 70–85°C for at least 8–10 minutes. Temperature at the return end should not drop below 40°C.
3. Rinse: Flush with clean water to remove detergent residues.
4. Acid rinse (alternate milkings or daily): Use an approved acid detergent to remove milkstone and maintain pH balance in the system.
5. Sterilise before milking: Circulate an approved sterilant (e.g. hypochlorite-based) before the next milking, then rinse with clean water.

Always follow the manufacturer's dilution rates and temperature guidance for your specific products.

Parlour Cleaning: End-of-Day Routine

• Scrape and wash down all floors, walls, and cow standings after each milking
• Clean the collecting yard and any holding area
• Disinfect footbaths regularly — formalin or copper sulphate solutions are commonly used
• Keep drains clear and flowing freely
• Remove slurry promptly — dirty standings increase environmental mastitis risk significantly

Mastitis Records & Monitoring

• Record every mastitis case: cow ID, quarter affected, clinical signs, treatment given, and outcome
• Monitor bulk milk SCC monthly — a rising SCC is an early warning sign
• Use individual cow SCC data from milk recording to identify high-SCC cows for investigation
• Review your mastitis records quarterly with your vet to identify patterns (new infection vs. chronic cases, environmental vs. contagious pathogens)

Browse our Dairy Hygiene Products & Parlour Cleaning range for teat dips, detergents, sterilants, and parlour cleaning supplies.

A Note on Compliance

UK dairy farmers are subject to milk quality penalties and potential suspension if bactoscan or SCC thresholds are breached. Your milk buyer's field team and your vet are your best resources if you're struggling with recurring issues — don't wait for a penalty notice to act.