---
title: "How to Remove Sneaker Odor: A Step-by-Step Guide"
canonical: "https://jerseyfrost.org/how-to-remove-sneaker-odor/"
author: "growthency"
published: "2026-09-03T04:37:49+00:00"
modified: "2026-09-03T15:27:01+00:00"
language: "en-US"
site: "Jersey Frost"
description: "Learn how to remove sneaker odor for good. Kill odor-causing bacteria with baking soda, charcoal, sprays and washing, plus proven tips to stop smells…"
categories: "Sneakers"
attribution: "Jersey Frost (https://jerseyfrost.org/)"
---

# How to Remove Sneaker Odor: A Step-by-Step Guide

To remove sneaker odor, you need to do two things at once: kill the odor-causing bacteria and eliminate the moisture they feed on. Take out and wash (or replace) the insoles, deodorize the interior overnight with baking soda, activated charcoal, or cedar inserts, then finish with an antibacterial spray and let the shoes dry completely. For stubborn, deep-set smells, freezing the shoes or running them through a gentle machine wash will reset even the funkiest pair.

 

Sneaker odor is one of the most common problems we hear about from readers, and the good news is that it is almost always fixable at home with cheap supplies. The smell is not really about dirt — it is the byproduct of bacteria digesting the sweat trapped inside a warm, damp shoe. Once you understand that simple chemistry, removing the smell (and keeping it from coming back) becomes a repeatable routine instead of a guessing game. Below is the exact process we use to rescue everything from daily knit trainers to well-loved leather basketball shoes.

  

## Why Your Sneakers Smell in the First Place

 

Each foot has roughly 125,000 sweat glands and can produce a surprising amount of moisture in a single day. Sweat itself is nearly odorless, but it creates the perfect environment for naturally occurring skin bacteria — species such as *Staphylococcus* and *Brevibacterium* — to multiply. As those bacteria break down sweat and dead skin cells, they release volatile acids, most notably isovaleric acid, which produces that unmistakable sharp, cheesy smell.

 

Sneakers make the problem worse because they trap heat and humidity against the skin. Synthetic linings, dense foam midsoles, and non-removable insoles all hold moisture long after you take the shoes off. If a pair never fully dries between wears, the bacterial colony simply picks up where it left off. In damp climates, fungi that cause athlete’s foot can join in and add a mustier note on top of the sour one.

 

### Odor Causes and Their Fixes

 

| Cause | Why it smells | Best fix |
| --- | --- | --- |
| Trapped moisture | Damp foam feeds bacteria for days | Cedar inserts, full 24–48h drying |
| Bacteria buildup | Produces isovaleric acid (cheesy smell) | Antibacterial spray, machine wash |
| Saturated insoles | Foam absorbs and holds sweat | Wash or replace with washable insoles |
| Sweaty feet / socks | Constant new fuel for bacteria | Moisture-wicking socks, foot powder |
| Fungus (athlete’s foot) | Adds a musty, mildew-like odor | Antifungal spray, treat the feet too |

 

![fresh athletic sneakers](https://jerseyfrost.org/wp-content/uploads/2026/09/remove-sneaker-odor-inline.jpg)

*Photo: JSFarman / CC BY-SA 4.0, via Wikimedia Commons*
 

## Step-by-Step: How to Remove Sneaker Odor

 

Work through these steps in order. Most pairs are noticeably fresher after a single overnight cycle, and fully reset after one deep clean.

 

1. **Remove the insoles and laces.** Odor concentrates in the insole foam, so pulling it out gives every treatment direct access to the worst offender.
2. **Knock out loose debris.** Tap the soles together outdoors and brush away grit so deodorizers can reach the lining.
3. **Deodorize overnight.** Pour one to two tablespoons of baking soda into each shoe, or drop in activated charcoal or cedar inserts, and leave them for 12 to 24 hours.
4. **Empty and wipe.** Shake out the baking soda in the morning (a vacuum helps) and wipe the interior with a cloth dampened in a 1:1 water-and-white-vinegar solution to neutralize lingering acids.
5. **Spray an antibacterial deodorizer.** Mist the inside lightly with a shoe-specific antibacterial or antifungal spray, or a diluted isopropyl alcohol solution, to kill surviving bacteria.
6. **Dry completely.** Stuff the shoes with newspaper or a dry towel and let them air-dry for 24 to 48 hours before wearing again.

 

## The Best Sneaker Deodorizers, Compared

 

No single product fixes every situation. Here is how the most reliable options actually work and when to reach for each.

 

- **Baking soda** — cheap and effective; absorbs moisture and neutralizes acids. Best for routine maintenance. Avoid on delicate suede linings.
- **Activated charcoal inserts** — reusable pouches that trap odor molecules and humidity. Excellent for gym bags and daily-driver sneakers.
- **Cedar shoe inserts or shoe trees** — wick moisture while releasing a natural antibacterial aroma; they also help shoes hold their shape.
- **Antibacterial and antifungal sprays** — the fastest way to attack the source. Look for formulas made for footwear so they will not stain.
- **Freezing** — sealing shoes in a bag and leaving them in the freezer overnight slows bacteria; pair it with drying, since it does not remove moisture on its own.

 

## How to Wash Smelly Sneakers Safely

 

When surface treatments are not enough, a full wash resets the shoe. Match the method to the material.

 

### Machine washing

 

Knit, mesh, and canvas sneakers from brands like Nike, Adidas, and New Balance generally tolerate a cold, gentle cycle. Remove the laces and insoles, place the shoes in a mesh laundry bag or pillowcase, add a couple of towels to cushion the drum, and use a small amount of mild detergent. Skip fabric softener, which coats fibers and can trap odor.

 

### Hand washing

 

Leather, suede, and premium sneakers should be cleaned by hand. Use a soft brush, lukewarm water, and a gentle cleanser, working in small circles and wiping as you go. Never soak leather, and condition it afterward so it does not dry out and crack.

 

### Drying

 

Air-dry every pair away from direct heat. A clothes dryer, radiator, or hair dryer can warp midsoles, shrink uppers, and loosen glued seams. Stuff the shoes with paper to hold their shape and speed drying, changing the paper once it is damp.

 

## How to Stop Sneaker Odor Coming Back

 

Prevention is far easier than a rescue mission. Build these habits and most pairs will stay fresh for months.

 

- **Rotate your shoes.** Give each pair 24 to 48 hours to dry fully before the next wear. Rotation is the single most effective anti-odor habit.
- **Wear moisture-wicking socks.** Merino wool or technical synthetics pull sweat away from the skin far better than 100% cotton, which holds moisture against your foot.
- **Use washable or antimicrobial insoles.** Swapping in replaceable insoles lets you refresh the smelliest component in seconds.
- **Keep feet dry.** A dusting of foot powder or antiperspirant before a long day dramatically reduces the sweat bacteria feed on.
- **Store shoes in a ventilated spot.** A dark, sealed gym bag is a bacterial incubator; open air and a cedar insert keep things dry.

 

For more cleaning routines and gear picks, browse our [sneaker care guides](/category/sneakers/), or check the [shop](/shop/) for the deodorizers and washable insoles we recommend.

 

## Frequently Asked Questions

 

### Does baking soda really remove shoe odor?

 

Yes. Baking soda is mildly alkaline, so it neutralizes the acidic compounds bacteria produce, and it absorbs the moisture those bacteria need. Left in overnight it noticeably reduces odor, though for heavy smells you should pair it with an antibacterial spray or a wash.

 

### Can I put my sneakers in the freezer to kill the smell?

 

Freezing slows and stresses odor-causing bacteria, which can reduce the smell, but it does not sterilize the shoe or remove the moisture the bacteria live in. Use it as a supplement to drying and deodorizing, not as a standalone fix, and always seal the shoes in a bag first.

 

### How do I get the smell out of insoles?

 

Pull the insoles out, coat both sides in baking soda overnight, then hand-wash them in warm soapy water and air-dry fully before returning them. If they still smell after that, the foam has absorbed too much sweat and it is time to replace them with fresh washable insoles.

 

### Why do my sneakers still smell after washing?

 

Usually because they were not dried completely — any trapped moisture lets the surviving bacteria rebound within a day. It can also mean the odor is coming from your feet or socks rather than the shoe, so treat athlete’s foot if present and switch to moisture-wicking socks.

 

### Are odor-eating sprays safe for all sneaker materials?

 

Most footwear-specific sprays are safe on knit, mesh, and synthetic linings, but always test alcohol-based or vinegar-based solutions on a hidden spot first. For suede and untreated leather, use a product made for that material to avoid staining or drying it out.

 

Featured image — Petar Milošević / CC BY-SA 4.0, via Wikimedia Commons