Fizzy Fermented Ginger Beer With A Ginger Bug

This healthier homemade ginger beer is perfectly fizzy, has an awesome kick of ginger, and is packed with probiotics. 

This is a homemade ginger beer that's naturally fermented. The fizziness and the probiotics come from a ginger bug. The ginger bug is made up of water, fresh ginger, and sugar.

That's the first thing that needs to be set up when making homemade ginger beer. Once the fermentation process is well underway and you've got it bubbling, you can make your own ginger beer whenever you like!

Jump to:

• What is a ginger bug?
• What you need for a ginger bug
• Water for fermenting
• How to make a homemade ginger bug
• Making fermented ginger beer
• Best bottles for ginger beer
• Maintaining a Ginger Bug
• Is there alcohol in fermented ginger beer?
• How long does it take to get a fizzy ginger beer?
• Full Recipe

What is a ginger bug?

It is a jar of Lacto-fermented ginger and water. All you do is feed a bit of fresh ginger and sugar every day to a jar of water at room temperature until it starts bubbling away.

The bubbling in the bug is due to natural yeasts and the Lactobacillus bacteria which break down the sugars. The bacteria convert them into lactic acid which in turn, is responsible for the probiotics and good digestive health.

It's the same bacteria that are in sourdough starter!

Both the wild yeasts and the bacteria create carbon dioxide which means this ginger bug will also carbonate your fermented drink so it's so fizzy and delicious. There is no need for any gadgets like a soda stream. The ginger bug works as a starter culture which will then ferment the ginger beer you make with it. Before you can make the fermented ginger beer recipe you need to make a ginger bug.

What you need for a ginger bug

• Water - Filtered water
• Real ginger - Fresh ginger root is the main ingredient. Using it with the skin on, is fine. Preferably organic ginger. This can be grated ginger, sliced or chopped.
• Sugar - Granulated white sugar. This is the food for the bacteria. You can use another full-calorie sugar if you like such as raw sugar or coconut sugar. Don't use low-calorie sweeteners such as stevia.

Water for fermenting

What water to use in fermenting can be a hot topic amongst fermenters. Some water sources can contain amounts of chlorine and other elements that could affect the fermenting process. Filtered water or tap water that has been boiled and left to cool is best to use.

Personally, I just use tap water. My tap water doesn't seem to affect my ferments or sourdough starter, however, if you feel your tap water may hinder the process, it's better to be safe than sorry and use filtered water.

How to make a homemade ginger bug

To make the ginger bug, start with pouring 500ml filtered water (2 cups of water) into a clean glass jar.

Add to it 3cm of freshly grated or chopped ginger (about two tablespoons) and two tablespoons of sugar. Stir it will. Cover the jar with a cloth and keep it at room temperature but out of direct sunlight.

Every 24 hours, for the next 2-6 days, feed the jar another 2 tablespoons of ginger and 2 tablespoons of sugar and give it a good stir. After about 3 days you might see it start to bubble and the ginger will rise to the top. This is a good sign. How long the whole fermentation process takes can depend on the warmth of your environment plus many other factors.

Once your ginger starter is bubbling and active, it is ready to use. The next step is to make the ginger beer base.

Making fermented ginger beer

To make the fermented ginger beer you will need -

• Water
• Sugar - granulated sugar, raw sugar, or coconut sugar. Coconut sugar brings a lovely caramel color to ginger beer.
• Fresh ginger
• Lemon juice or lime juice
• Ginger bug - the strained ginger bug liquid

Ove high heat, heat the water, ginger, salt, and sugar until a simmer and the sugar has dissolved. Leave to cool to room temperature and let the ginger infuse in the water.

Strain the solids out of the liquid by pouring them through a fine mesh strainer. Add in the juice of the lemon or lime and the strained active ginger bug liquid. Pour into clean bottles, leaving at least 5cm (2 inches) of space between the ginger beer and the top of the bottle. Seal the bottles.

Check for carbonation after 3 days, especially in glass bottles to avoid them bursting. It might not be carbonated yet at this point though, it can take up to a week.

Once it is carbonated, store the bottles in the fridge to slow down further carbonation, but burp them daily.

Best bottles for ginger beer

If you're only making small amounts of fermented ginger beer at a time, and you keep an eye on them, then glass flip-top bottles are great. They have a good airtight seal and this helps carbonate the drinks quicker.

However, they run the risk of bursting if they're not burped (opening the top to let the gas out) as the gases have no place to escape.

If you think you might forget to check your bottles or you plan to make a bulk amount, then plastic soda bottles are a safer bet. A plastic bottle will also need to be burped to avoid bursting, but at least if they burst they won't smash.

Maintaining a Ginger Bug

Once you have used your bug, top it up with however much water as what you took to use for the ginger beer. Add in 2 tablespoons ginger and 2 tablespoons sugar. Stir it well. Now you can store it in the fridge in a sealed jar until you next use it.

Every week you can feed it 1 teaspoon of ginger and 1 teaspoon of sugar to keep it active, however, the ginger bug is pretty robust once made. I left mine in the fridge for 3 months before feeding it again a couple of times and it was just fine. It's quite normal for the ginger sediment to accumulate at the bottom of the jar.

If you want to use it again, take it out of the fridge and feed it 2 tablespoons ginger and 2 tablespoons sugar at least 6 hours before you need it, so it is bubbling and active. If it has been dormant for a long it may need 2-3 feeds to become very active again.

Is there alcohol in fermented ginger beer?

There is a small amount of alcohol in this fermented ginger beer but not much at all. If you really want to know how much you can use a brewing hydrometer to test it.

How long does it take to get a fizzy ginger beer?

How long they take to carbonate depends on the strength of your bug, the amount of sugar added to the ginger beer base, the seal of the bottles, and the temperature of your environment. It can take 2-3 days or up to a week (sometimes even longer)

Once it is carbonated, store the bottles of probiotic ginger beer in the fridge to slow down further carbonation, and burp them daily.