> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.coffeemachinespecialist.com.au/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Coffee Tastes Bad - How to Fix

# Coffee Tastes Bad - How to Fix

If your coffee doesn't taste right, here's how to diagnose and fix the issue.

## Identify the Problem

### Bitter Coffee
**Possible Causes:**
* Over-extraction (brewing too long)
* Grind too fine
* Water too hot
* Too much coffee
* Stale or dark roasted beans

**Solutions:**
* Coarsen the grind setting
* Reduce brew time
* Use less coffee
* Check water temperature (ideal: 90-96°C)

### Sour/Acidic Coffee
**Possible Causes:**
* Under-extraction (brewing too short)
* Grind too coarse
* Water not hot enough
* Not enough coffee
* Very light roast beans

**Solutions:**
* Fine up the grind setting
* Increase brew time
* Use more coffee
* Ensure machine is fully heated before brewing
* Try medium roast beans

### Weak/Watery Coffee
**Possible Causes:**
* Not enough coffee grounds
* Grind too coarse
* Brew time too short
* Old or stale beans

**Solutions:**
* Increase coffee dose
* Fine up the grind
* Extend brew time
* Use freshly roasted beans (within 2-4 weeks of roast)

### Burnt Taste
**Possible Causes:**
* Water temperature too high
* Coffee sitting on hot plate too long
* Dirty machine (old coffee residue)
* Very dark roast beans

**Solutions:**
* Check and adjust water temperature if possible
* Don't leave coffee on warming plate
* Clean your machine thoroughly
* Try medium roast beans

### Metallic or Chemical Taste
**Possible Causes:**
* New machine not properly flushed
* Descaling solution residue
* Old or contaminated water
* Dirty water tank

**Solutions:**
* Run multiple rinse cycles through the machine
* Clean water tank with mild detergent, rinse well
* Use fresh filtered water
* Replace water daily

### Stale or Flat Taste
**Possible Causes:**
* Old coffee beans
* Beans stored improperly
* Pre-ground coffee gone stale
* Machine needs cleaning

**Solutions:**
* Use beans within 2-4 weeks of roast date
* Store beans in airtight container away from light
* Grind beans fresh before each brew
* Clean machine thoroughly

## Coffee Taste Troubleshooting Chart

| Problem | Adjust Grind | Adjust Dose | Adjust Time | Other |
| ---- |
| Bitter | Coarser | Less | Shorter | Check temp |
| Sour | Finer | More | Longer | Preheat machine |
| Weak | Finer | More | Longer | Fresh beans |
| Burnt |  |  |  | Clean machine |
| Metallic |  |  |  | Rinse system |
| Stale |  |  |  | Fresh beans |

## Machine Cleaning Checklist

Regular cleaning dramatically improves taste:

**Daily:**
* ☐ Empty and rinse drip tray
* ☐ Wipe steam wand after each use
* ☐ Rinse portafilter and filter basket
* ☐ Empty coffee grounds container

**Weekly:**
* ☐ Backflush with water (espresso machines)
* ☐ Clean group head with brush
* ☐ Wash removable parts
* ☐ Wipe exterior

**Monthly:**
* ☐ Backflush with cleaning solution
* ☐ Deep clean brew group
* ☐ Clean grinder burrs (if applicable)
* ☐ Check and clean water tank

**Every 2-3 Months:**
* ☐ Replace water filter (if applicable)

## Water Quality Matters

Water makes up 98% of your coffee. Poor water = poor coffee.

**Recommendations:**
* Use filtered water (BWT)
* Avoid distilled water (can damage machines)
* Avoid very hard water (causes scale buildup)

## Bean Storage Tips

* Buy in small quantities (2-4 weeks supply)
* Store in airtight container like Airscape
* Keep away from light, heat, and moisture
* Don't refrigerate or freeze (causes condensation)
* Use whole beans and grind fresh

## Still Not Right?

If you've tried these solutions and your coffee still doesn't taste right:

1. Try a different coffee bean brand
2. Consider a professional machine service
3. Chat with us for personalised advice

We're coffee lovers too and happy to help you dial in the perfect cup!