--- title: "How to Clean a Bird Feeder (Step by Step)" url: https://thebirdfeederguide.com/how-to-clean-a-bird-feeder/ type: post date: 2026-10-17 modified: 2026-10-31 markdown_url: https://thebirdfeederguide.com/how-to-clean-a-bird-feeder.md author: "admin" --- # How to Clean a Bird Feeder (Step by Step) *By The Bird Feeder Guide Editorial Team · Specs verified October 2026* *As an Amazon Associate we earn from qualifying purchases. See our [affiliate disclosure](/affiliate-disclosure/).* Dirty feeders can spread disease. This guide gives the cleaning steps and schedules that Cornell Lab, Audubon and Clemson Extension publish, and shows where they differ. After cleaning, reduce mess with [these tips for seed under feeders](/stop-seed-mess-under-bird-feeders/), and see [types of bird feeders](/types-of-bird-feeders/) for which designs are easiest to wash. ## How we chose these steps We used three current sources and kept steps that at least two agree on. Anything not stated is marked Not stated. ## How often to clean FeederSchedule per sources Seed and suetAbout every two weeks (Cornell, Audubon quoting FeederWatch, Clemson). More often with heavy use, wet weather, sick birds or disease reports. HummingbirdChange nectar at least every 3 to 5 days (Cornell) or twice a week (Clemson); clean weekly or more. Ground under feedersClemson: monthly sweep of hulls and spilled seed. Cornell and Audubon: no interval stated. ## Step by step: seed and suet feeders - Take the feeder apart and scrub off debris and old seed with a brush or sponge. - Wash with soap and hot water, or use a dishwasher on a hot setting if the feeder allows (Cornell). - To disinfect, soak about 10 minutes in 1 part bleach to 9 parts water (Cornell, Clemson). Audubon cites the same ratio and does not state a soak time. Cornell says no more than that strength. - Rinse thoroughly. - Dry completely before refilling. Audubon: moisture lets fungus and bacteria grow. An alternative from Audubon (2021): soak 15 minutes in a 50-50 vinegar and water solution. Clemson also allows hydrogen peroxide without giving a concentration. [Browse feeder cleaning brushes on Amazon](https://www.amazon.com/s?k=bird+feeder+cleaning+brush&tag=tbfg-20). ## Hummingbird feeders Cornell says to use hot water and a bottle brush and not soap or detergent, with dilute bleach as an option followed by thorough rinsing. Clemson instead recommends a weekly 4-to-1 vinegar and water wash with a scrub brush. Pick one and rinse well. Cornell advises against oil or sticky substances at the ports to deter bees. See [best hummingbird feeders](/best-hummingbird-feeders/). ## If you see sick birds Audubon says not to pick up or treat a sick bird yourself; contact a local wildlife rehabilitator or the National Wildlife Health Center. Clean more often, as all three sources advise. Cornell and Clemson give no further handling steps. ## Who this is for, and who should skip it **For:** anyone with a seed, suet or nectar feeder. **Skip the bleach step if:** you use a hummingbird feeder and prefer the no-bleach methods Cornell and Clemson describe. Wooden feeders: Not stated by these three sources; see our [types guide](/types-of-bird-feeders/). ## Limits of this guide The sources differ on hummingbird cleaning agents and nectar change frequency. We did not test any cleaner. ## FAQ ### How often should I clean a bird feeder? About once every two weeks for seed feeders, more often in wet weather or if birds look sick. ### What bleach ratio is used? 1 part bleach to 9 parts water, per Cornell, Audubon and Clemson. ### Can I use vinegar? Clemson recommends 4-to-1 vinegar and water for hummingbird feeders; Audubon (2021) suggests a 50-50 vinegar soak. **How this guide was made:** Research-based from the cited expert sources below, compiled with AI assistance and reviewed by the editorial team. We did not hands-on test any product. See [How We Research](/how-we-research/). ## Sources - Cornell Lab of Ornithology, How to Clean Your Bird Feeder (August 20, 2024) - allaboutbirds.org/news/how-to-clean-your-bird-feeder/ - Audubon, Three Easy but Important Ways to Keep Your Bird Feeders Disease-Free (updated April 24, 2024) - audubon.org - Clemson Cooperative Extension HGIC, Washing Bird Feeders (February 20, 2025) - hgic.clemson.edu/washing-bird-feeders/ - Audubon, How to Feed Birds Safely This Winter (2021) - audubon.org [Home](/) · [Feeding birds in winter](/feeding-birds-in-winter/)