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Fermenting is a science, and a bit of an art. It requires care in a few specific things, but doing it right is not particularly complicated. We provide instructions that are accurate to the best of our knowledge, and which are based on the methods we successfully practice ourselves. There are no guarantees of success or safety with fermented foods. While properly fermented foods are not only safe, but healthy to eat, it is up to you to follow instructions to ensure safety, and to trust your eyes and nose, and don't eat things that do not look or smell like food. We offer no guarantees of success with our product. We do warrant that it is as described, and will do what we say it will, but how you use it is your choice.

Fermenta Cap and Fermenta Lock were designed by Kevin and Laura, owners of Firelight Heritage Farm. Many of the items sold are hand crafted by Firelight Heritage Farm, or by their small business subcontractors.


How We Do It

Some of our products are purchased through suppliers, and resold, but the distinctive original products manufactured by and for Fermenta Cap are not made in large factories, and they are made right here in the US.

Rather than choose to outsource our manufacturing to companies in China or India, we decided to keep as much the labor force here in the US as we possibly can. Getting started with a custom part which is manufactured in a US based factory is prohibitively expensive (there are very few left), and is contrary to our philosophy of independence and encouraging cottage industry. We decided that there MUST be a better way.

The products we manufacture all bear the signs of home manufacture. Each item is slightly unique, in ways that do NOT affect function. We choose the visible imperfections of hand-manufacture, over the flawless and characterless factory production (with so many invisible problems), because we feel that doing so is more advantageous to our customers, our business, and our nation.

We have chosen to subcontract with other small businesses – home based when possible -to expand our operations, rather than to go through more industrialized routes. We feel this return to simpler methods, and to hands-on work, is more in keeping with the philosophies behind home pickling, sourdough bread baking, home production of cultured dairy, and other slow homemade food processes. Just as you take the time to craft the food in your home, we take the time to carefully craft each part that we make.

The visible imperfections in our products become representative of home fermentation: Each item is unique, with it’s own distinct character. Functionally, it all WORKS in the ways that really matter, because the parts that really need to work right in order to produce good food, function without flaw. This is true of our products, and it is true of the foods you produce using them.


Why We Did It

Laura and some of her children had Crohn’s disease, but healed from it using a more traditional whole and natural foods diet. Probiotic foods were an important part of this.

Laura and Kevin understand that most people who culture and ferment their own foods are doing so on a very limited budget, and they cannot afford to pay for equipment that is not durable and reusable. Investing in equipment is one thing, spending and spending every time you make something should be avoided whenever possible. This is the philosophy that goes into every product that Kevin and Laura have created.


Mostly U.S. – Why not ALL U.S.?

Many manufacturing sectors have moved overseas. It is doubtful that they will return. Glass manufacturing, rubber and plastic are a few of those which are impossible to source in the US. Companies that say they are US based are still outsourcing the manufacturing overseas.

This means SOME of the parts we use in assembling some of our products are NOT made in the US. There is simply no other way to get them. The modifications that we make to those parts ARE done here in the US.

Instead of outsourcing to the cheapest place we could, we have developed strategic relationships in the poorest countries. We do not do this for our benefit, but for THEIRS. We partner with non-profit organizations, who are helping to combat child hunger. We provide jobs for the parents of needy children. We have found that when we do this, the price we are able to afford to pay (based on US pricing of the sale of our product), provides a living wage for the workers – a fair wage that does not take advantage of their poverty. They are raised up out of poverty, and their children are no longer hungry. They have sufficient to provide for their children’s educational needs as well.

Because we work with charitable institutions of good repute, the money we pay goes directly to the manufacturers of the product – parents of children. There is nothing skimmed off for management, and only a small fee is paid to the charity for the use of space and for oversight.

All product descriptions state clearly the place of manufacture. We are happy for you to know what is made in the US, and what is not, and WHY some things are not.

The ORIGINAL one-way valve fermenting airlock! Imitation IS the sincerest form of flattery, and we have noticed that our product has been copied by other sellers of fermenting products. Remember, if you see someone else selling a one-way valve airlock for fermenting, THEY copied US, not the other way around! Fermenta Lock is still the only original invention, handmade in the US. If it isn't orange, it isn't the original!

We invented Fermenta Lock, Fermenta Free, and the valve used for Fermenta Fido and other Fermenta Airlock products. We invented Fermenta Dunk Extender. Patents are prohibitively expensive, and designed by the government not to protect the rights of individuals, but to provide another source of revenue and control for the government and lawyers. We are good at what we do. We have endless ideas and endless creativity, and competition does not scare us. Impatient thieves do not scare us - they are too busy taking shortcuts to make a success of it anyway, and they won't want to take the effort to actually MAKE a product and fill orders.

So if you want to copy our idea, go right ahead. If you want to market and sell a competing product, you are welcome to do so, as long as you do not patent our idea - we had it first, and our posts on FaceBook announcing the invention and launch of it will prove that. This idea is officially in the public domain, placed there by us. We will NOT release supply sources, or part names unless you want to buy them - we'll be happy to sell you an instruction kit. If you buy our product, or look at the images and figure it out for yourself, good on you. Compete with us if you like, just don't screw us, and we'll get along just fine. Big companies who might want to screw us may have more money, and more lawyers than we do, but we have more to gain by suing the pants off a big company, and believe me, we will be well motivated to do so if anyone patents our idea and claims it as their own - this is a free idea. Everybody now owns it.

Published June 23, 2012

Wholesale, Export, and Manufacture of this product by other companies is an option. International distributorships are available for those wishing to export. Please email us to inquire about access to our wholesale website, or in regards to manufacturing any of our products.

Business Building Services Are Available - If you are wanting to build a business like this, where you make things in the home and sell them direct to the customer, or if you want to build a business that you can sell to other people as a complete business package, Firelight Heritage Farm is now offering Cottage Industry Services to aid small business owners in building a successful product or service business from the home. Don't know what you want to do? We can help you figure that out too (something original, and just yours, not a canned business). You get the wisdom and uniquely successful perspective and experience of people who have been business, marketing, and website professionals for more than a dozen years. For more information, visit Why copy someone else's business when you can do something uniquely you and enjoy it so much more?

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US Orders Only.

Email us for shipping quote on International Orders, and to place your order for shipping outside the US.

This website is only equipped to handle orders from US customers (International shipping must be calculated for each order). International Orders are now accepted BY EMAIL from UK, AU, CA, and shipped USPS (other countries will be considered if requested). Please email a list of the items you wish to order, using our Contact page, and we will give you a shipping quote, and then invoice you from PayPal for the total.
Uses of Fermenta Lock

Fermenta Lock is a compact airlock cap for mason jars, to help in making old fashioned brined pickles, and other lacto-fermented foods. Use Fermenta Lock for:

Pickles (all kinds)
Sauer Kraut
Milk Kefir
Bean Paste/Hummus
Sourdough Starter (if started with culture or yeast)
Anything which needs gas release without a lot of air circulation.

Customer Comments

“Living down in Guatemala, we have quite a lot of dampness in our houses and mold is an ongoing battle. After a long dose of antibiotics due to a parasite, I absolutely required probiotics to get my gut back in order and I know homemade sauerkraut has more probiotic content than anything else I could find here. I wasn’t able to make my beloved sauerkraut or even Kombucha in my kitchen because mold would start growing immediately on the top. Your Fermenta Locks have literally been a lifesaver for me! No more mold, and PERFECT Kraut EVERY time!!! Thank you for creating such a wonderful product!!!”

A. Kratzert

“Oh how I wish I had found you first!! Too many experts and too many bucks later I discovered your “Lock” and the sheer elegance and simplicity of your system.Thank you for your help and affordability, it makes healthy food attainable.”


“I came back to order more FermentaCaps. A wonderful innovation. I have not lost a single batch of sauerkraut since I started using the original Fermenta Locks.”


“Please continue your good work on producing such a great product. I’ve tried lots of other kinds of airlocks- the 3 piece water lock, pickle pipes, fermilid, boss pickler, and I think yours is the best design and quality. I’d like to order another 100 of them right now, but I’ll have to wait a bit. I’ve had lifelong health challenges. I’m 38 and about 20 years ago my health was so bad I didn’t feel like living most of the time. Now my health is the best it’s ever been and it wouldn’t be possible without fermented vegetables, they have made a huge improvement in my health.”


(Last names omitted to protect customer privacy.)