If you have ever opened your HovaBator right after a hatch, you already know the smell: wet shell membrane, chick fluff and a sticky film in every seam and vent hole. It is not glamorous, but it is one of the most important jobs in incubation. An incubator that goes back into service dirty carries bacteria, mold spores and residue straight into your next batch of eggs.
This guide shows how to clean a HovaBator between every hatch, step by step, with the right products for foam and plastic. The same steps work for most tabletop incubators and hatchers.
Quick answer: how do you clean an incubator after a hatch?
Unplug it and let it cool, dry-brush out all shells and fluff, wash the removable parts in warm water with mild dish soap, disinfect with diluted bleach (about 1 tablespoon per gallon of water) or a poultry-safe disinfectant, rinse, and let everything dry completely before reassembling. Keep the heating element, thermostat and motors dry. On styrofoam models, avoid alcohol and harsh solvents.
Why Cleaning an Incubator Between Hatches Matters
An incubator holds warm, humid air for 21 days (longer for waterfowl), which is exactly what bacteria and mold need to multiply. After a hatch, it is left with broken shell, membrane, down and moisture that start breaking down right away. If that residue is still there when the next eggs go in, you are incubating inside a low-grade petri dish.
- Yolk sac infection (omphalitis): caused by bacteria like E. coli that thrive in old shell residue. It hits chicks with unhealed navels and can spread through a batch quickly.
- Mold and brooder pneumonia: high humidity plus leftover organic material lets mold such as Aspergillus fumigatus grow, which causes respiratory illness in chicks.
- Buildup on vents, fans and sensors: dried residue and hard-water minerals can throw off airflow and humidity readings, which lowers your next hatch rate.
You cannot fix any of these once eggs are in the incubator, so prevention has to happen during cleaning.
What You Will Need
- Rubber gloves
- Soft-bristle brush (like the EZ-Clean Chick Brush)
- Mild dish soap
- Unscented bleach or a poultry-safe disinfectant
- Measuring spoon
- Soft cloths or paper towels
- Cotton swabs or an old toothbrush
- A sink or basin for the removable parts
If any trays, turner parts or wick pads are cracked, warped or missing, check Hova-Bator replacement parts before your next hatch so you don't find out mid-lockdown.
Step 1: Unplug and Let It Cool Completely
Never clean an incubator while it is warm or plugged in. Heat can burn you, and liquid on a hot thermostat or heating element is a bad combination. Once the last chicks are in the brooder, unplug the unit and let it reach room temperature before you touch anything electrical.
Step 2: Remove All Shells, Fluff and Debris
Take out the hatching tray, egg turner parts, wire racks and liners. Sweep out loose shell and down with a dry paper towel or brush before any liquid touches a surface. This stops you smearing debris around and keeps your sink drain clear. Check corners and seams, because fluff works into vent holes, thermostat housings and the gap between lid and base. A cotton swab or old toothbrush handles these spots well.
Step 3: Wash the Removable Parts
Separate everything that comes apart safely: the hatching tray, egg turner tray, wire mesh floor, humidity wicks (usually replaced rather than reused) and any liners. Wash them in warm water with mild dish soap and scrub mesh and corners with a soft brush. Never use a dishwasher, because heat and detergent can warp plastic and damage components. Rinse until the water runs clear and nothing feels slippery.
Keep the electronics dry. Never submerge or spray the heating element, thermostat, fan motor, turner motor or power cord. Wipe those areas with a barely damp cloth only.
Step 4: Disinfect Every Surface
Disinfect once parts are washed and rinsed. A solution of about one tablespoon of unscented bleach per gallon of water is gentle enough for most incubator materials, and a poultry-safe disinfectant is a good alternative. Work in a ventilated space, wear gloves, and never mix bleach with ammonia, vinegar or other cleaners.
On styrofoam models such as the 1588 or 1602N, avoid alcohol-based cleaners and harsh solvents, which can pit, discolor or break down the foam over time.
- Wipe the base, lid, vents and every removable part with a cloth wrung out in the solution
- Wipe fan housings and blades with a damp cloth if you have a fan kit
- Leave the disinfectant on for the full contact time on the label, usually several minutes, before wiping or rinsing
Contact time matters. A quick spray-and-wipe does very little, because it is the time the surface stays wet that kills pathogens.
Step 5: Rinse and Dry Thoroughly
Rinse everything with clean water to remove residue, especially after bleach. Then dry every part completely on a clean towel with good airflow. Sunlight helps disinfect hard plastic parts, but keep foam bodies out of prolonged direct sun. Never reassemble or store the incubator while any part is damp, because trapped moisture invites mold and can corrode turner motors and thermostat contacts.
Step 6: Reassemble and Do a Test Run
Once everything is dry, put the incubator back together, plug it in and let it run for several hours. Confirm the thermostat and fan hold a stable temperature, the turner cycles smoothly, and your thermometer and hygrometer agree with a separate unit. The IncuTherm Plus Hatch Monitor gives an independent temperature and humidity reading at egg level, which helps you catch problems before eggs go in.
If a tray is cracked, the turner is sluggish or a wick won't come clean, replace it now, not three days into the next cycle.
Can You Use Something Other Than Bleach?
Yes, but not every cleaner is safe for an incubator. Embryos and chicks are sensitive to fumes and residue, so check the label for use on poultry or hatching equipment, and always rinse and dry fully.
| Option | Safe on | Notes |
|---|---|---|
| Diluted unscented bleach | Styrofoam, hard plastic | Rinse well. Keep it off electronics and bare metal. |
| Poultry or hatchery disinfectant | Depends on the product | Mix exactly per the label and confirm it lists incubators or hatching equipment. |
| 3% hydrogen peroxide | Styrofoam, hard plastic | Gentler option. Leave for several minutes, then rinse and dry. |
| 70% isopropyl alcohol or ethanol | Hard plastic and metal parts only | Never on styrofoam. Let it evaporate fully. |
| Scented sprays and household cleaners (Lysol, Domestos, pine or citrus) | Not recommended | Fragrances, additives and fumes can linger and may harm embryos and chicks. |
| White vinegar | Hard plastic and metal parts | Not a disinfectant, but useful for hard-water scale. Rinse and dry first. |
How Often Should You Clean an Incubator?
Clean and disinfect after every single hatch, even if you plan to start a new batch right away. Beyond that:
- Mid-incubation: clean any cracked egg or spill immediately
- Monthly, if running continuously: check vents, fan blades and thermostat sensors for dust or mineral buildup
- Before long-term storage: full clean, make sure it is bone dry, then store covered in a cool, dry place away from pests and sunlight
Common Mistakes to Avoid
- Using alcohol or harsh solvents on styrofoam: repeated use leaves the foam brittle or discolored
- Cleaning while warm or plugged in: burn risk, and liquid near a heating element is dangerous
- Getting the electronics wet: wipe thermostats, motors and cords with a barely damp cloth
- Skipping contact time: a quick spray-and-wipe won't kill bacteria and mold spores
- Reassembling while damp: trapped moisture undoes your work
- Ignoring the fan and vent holes: dust and debris build up where you can't see them
- Ignoring worn parts: it is easier to swap a replacement part now than troubleshoot a failed hatch later
FAQs (People Also Ask)
Q: How do you clean an incubator after a hatch?
Ans: Unplug it and let it cool, dry-brush out shells and fluff, wash the removable parts with mild dish soap, disinfect, rinse and dry completely. Keep the heating element, thermostat and motors dry throughout.
Q: How often should I clean my egg incubator?
Ans: After every hatch, without exception. Also clean any cracked egg or spill as soon as you find it, and inspect vents and fan blades monthly if the unit runs continuously.
Q: Can I use bleach on a styrofoam incubator?
Ans: Yes. About one tablespoon of unscented bleach per gallon of water is generally safe for Styrofoam HovaBator models and won't damage the foam the way alcohol or strong solvents can. Rinse thoroughly and let it dry completely.
Q: Can I use something other than bleach to disinfect an incubator?
Ans: Yes. A poultry-safe disinfectant or 3% hydrogen peroxide works on foam and plastic. Use alcohol only on hard plastic and metal parts, and avoid scented household sprays, which can leave fumes and residue.
Q: Can I use alcohol or ethanol on a styrofoam incubator?
Ans: No. Alcohol can pit and weaken styrofoam. Keep it to hard plastic and metal parts, and let it evaporate fully before use.
Q: How long should I let my incubator dry before storing it?
Ans: Give every part at least a full day. Moisture trapped in foam or plastic can corrode metal components or grow mold before the next use.
Q: Can I put incubator parts in the dishwasher?
Ans: No. Heat and detergent can warp plastic trays and damage turner components. Hand wash with mild dish soap instead.
Q: What causes a bad hatch even when temperature and humidity were correct?
Ans: Bacterial or fungal contamination left from a previous hatch is one of the most overlooked causes. Pathogens in unseen corners, fan blades or vent holes can affect embryos even with perfect settings.
Q: Do I need a separate hatcher unit?
Ans: Not necessarily, but many hatchers use one incubator for incubating and another for hatching. That keeps the mess of hatch day in one unit, so the main incubator stays cleaner between cycles.
Every hatch starts with a clean incubator. Make cleaning part of your routine, and your hatch rates will show it. Need parts or a monitor before your next batch? Browse Hova-Bator parts, read the full maintenance guide, or visit the Incubation Learning Center.