Ferment safely.
Understand salt, acidity, temperature, oxygen and the signs of a healthy ferment.
Learn to ferment with confidence
Fermentation,
without the fear.
Free tools, practical guidance and a complete course to help you understand what is happening in the jar — and know when your ferment is safe, ready and delicious.
Free tool
Fermentation
Salt Calculator.
Choose whether you're making a dry-salt ferment such as sauerkraut or a brined ferment such as cucumbers, pickles or whole vegetables.
Enter your weights and we'll calculate exactly how much salt you need.
Enter your weights above.
Dry-salt ferments default to 2.25%. Brined ferments default to 3.5%. Use alongside an appropriate fermentation method and suitable food-safety controls.
Coming soon
Ferment
The complete online course
Ferment
Fearlessly.
Learn the principles behind safe, delicious vegetable fermentation so you can stop second-guessing every bubble, smell and cloudy jar.
Clear enough for a complete beginner. Detailed enough to become the reference you keep coming back to.
£119
planned course price
Ferment Fearlessly is currently being created.
Start with the £25 fermentation guideFix problems.
Understand softness, kahm yeast, mould concerns, cloudiness and unusual smells.
Create your own.
Move beyond rigid recipes and confidently adapt vegetables, flavours and batch sizes.
Make it delicious.
Learn how time, temperature and seasoning affect texture, acidity and flavour.
Made for real kitchens
Know what you're doing — not just what a recipe says.
This course is for complete beginners, home fermenters who still worry about whether a jar is safe, and curious cooks who want to create their own recipes.
You'll learn how salt, temperature, time, acidity, oxygen and texture work together so you can troubleshoot with confidence.
Inside the course
From first jar to confident fermenter.
Learn both the how and the why.
01 Fermentation foundations +
Meet the microbes, understand lactic acid fermentation and
learn the conditions beneficial bacteria need to thrive.
02 Salt, brine & percentages +
Learn dry salting, brining, weighing correctly and how
fermentation percentages actually work.
03 Equipment & preparation +
Jars, weights, airlocks, preparation, cleanliness and how
to build a dependable setup without unnecessary equipment.
04 Safety without panic +
Understand acidity, pH, oxygen, mould, kahm yeast, smells
and practical signs of a healthy ferment.
05 Texture, flavour & timing +
Learn how salt, time, temperature and vegetable structure
influence crunch, sourness and flavour complexity.
06 Build your own ferments +
Use a repeatable framework to confidently develop your
own vegetable and flavour combinations.
07 Troubleshooting clinic +
Work through common fermentation problems, what caused
them and what to change next time.
What's included
Everything you need
to keep fermenting.
Lifetime access
Return to the lessons whenever a new batch raises a question.
Printable reference guides
Keep your key ratios, safety checks and troubleshooting notes close to hand.
Recipe foundations
Begin with dependable core ferments and learn how to confidently adapt them.
Free salt calculator
Return to the calculator whenever you begin another batch.
Ferment with confidence
Less guessing.
More bubbling.
★★★★★“I finally understand what I'm looking for instead of worrying about every jar.”
Future course feedback
★★★★★“Clear, practical and reassuring — exactly what I wanted when I first started fermenting.”
Future course feedback
★★★★★“I understand the process now rather than simply hoping I've followed a recipe correctly.”
Future course feedback
Your teacher
Learn with Anna
from Bwblin.
I make seasonal, unpasteurised ferments in small batches on Anglesey.
I created Ferment Fearlessly to make fermentation feel understandable rather than mysterious — using the same practical, safety-led approach I use when making Bwblin's own ferments.
My aim isn't simply to give you another collection of recipes. I want you to understand what is happening in the jar so you can make good decisions for yourself.
Frequently asked
Before you
join.
01 Is this suitable for complete beginners? +
Yes. You won't need previous fermentation experience.
The course will start with the fundamentals.
02 How long will I have access? +
The plan is lifetime access so you can return whenever
you start a new ferment or need to troubleshoot.
03 Do I need specialist equipment? +
No. You'll be able to begin with simple kitchen equipment.
04 Is this only about sauerkraut? +
No. The course is designed to cover principles that apply
across many vegetable ferments.
05 Can I work through it at my own pace? +
Yes. It is designed as a self-paced course.
Want to start now?
A Little Book
of Fermentation.
My digital fermentation guide is available now while Ferment Fearlessly is being created.
Start with practical recipes, fermentation guidance and plenty of ideas to help you get bubbling.
Get the £25 fermentation guideStart fermenting today
Make your
next jar with
confidence.
Ferment Fearlessly is coming soon. Until then, start with A Little Book of Fermentation.
Get A Little Book of Fermentation
Digital ebook · £25