What is Lactic Fermentation?

Lactic fermentation uses the natural flora present on fruits and veggies to ferment the foods; this process is 100% natural and vegan. We add a touch of salt to create an environment where only the “good” bacteria can thrive. This type of fermentation produces umami, light acidity and transforms the flavor of food in sometimes surprising ways!

What is Umami?

Umami is a loanword from Japanese that means “savory taste” or “essence of deliciousnes”. In the west, savory taste was thought to be derived from saltiness, but in the East, Umami was known to impact flavor independently. These days, it’s recognized worldwide as the fifth sense of taste after sweet, salty, sour, and bitter. Some foods rich in Umami are tomatoes, chiles, mushrooms, and parmesan!

Umami makes your food deeper, tastier, and more satisfying.

What kind of salt do you use?

Our salt infusion process is quite unique, so consistency in size and shape of the salt crystal is important to us. After years of testing, we determined that pure, refined salt, rather than sea salt, is the best for our processes. Our infused salts are more flavorful than sea salts, packed with flavor, and we know you will love cooking with them!

Do you use anti-caking agents?

We know the ingredients in your food are important to you; that is why we do our best to use whole foods to achieve the same results as some common anti-caking agents.

To reduce clumping in certain blends, we use non-gmo cornstarch in small amounts when it is needed (less than 1% in most blends!).

If you are ever curious, just look at the label!

What about artificial colors or flavors?

We don’t use any artificial colors or flavors!

For the sake of transparency, we would like to mention that we do use citric acid in certain blends to brighten the flavor profile.

Do your products contain allergens?

Sandcastle is a self contained facility, which allows us to keep free of most major allergens. We do have products that include seasame and/or oats.

We practice full transparency in labeling, so for more detailed information please reference the ingredient section of the product listing.

Some of our products also possibly contain natural sulfites from mushrooms or added sulfites from wine.

For information regarding allergens or sulfites, please reach out to Sandcastle at

Why doesn't my container look filled to the very top?

Our bottles are each filled by weight rather than volume. After our spices and blends are ground and mixed fresh, they are then bottled (by hand!). The fill weight of each blend will vary based on the density and moisture content of its components. For example, an herb blend like Mountain Joy has a much lower fill weight because its components have a lower density than one of our salts. Your spices may also have settled during shipping, and we reccomend giving the bottle a good shake when you first receive them to bring the ingredients back to their original fill level.

Are any of your products vegan or gluten free?

We are not certified as vegan or gluten free.


We do not process any animal products, so our entire line of salts, seasonings and spice blends are vegan.

We do not process any ingredients that contain gluten. Since some individuals who are sensitive to gluten can also be sensitive to oats, please be aware that we do use gluten-free oats in some of our blends. All of these products are labeled as such.

Why artisanal smoked ingredients?

We smoke our ingredients using real hardwoods, using traditional methods.

Real smoked spices are superior to artificial ingredients like “liquid” smoke. We smoke REAL food, not junk like maltodextrin! In order to have a CLEAN smoke flavor you need a hot fire, and a dedicated pit master to keep it. We smoke for flavor, so we don’t cut corners.

What do you mean by extraction/infusion?

We make extracts using bourbon or tequila as a solvent or by boiling foods the same way you would make stock. We use brines from our lactic ferments and our various extracts to infuse flavors into salts, sugars, and more!

Can I return or exchange my purchase?

We cannot accept any returns or exchanges on grocery products.  However, if we make an error on an order, we will make it right through either a refund or a replacement.

Please contact us directly here.  

How long will it take my order to arrive?

During non-holiday times, you can expect your order to be shipped within 3-5 business days. Please remember that we are a small batch, artisinal company. Sometimes we are making a new batch for your order. If there is a delay, you will be notified!

Once it has been shipped, you will receive a confirmation email with your tracking number. During holidays, please allow additional time for your order to be shipped.

Do you ship internationally?

Unfortunately, at this time we are unable to ship internationally. We will continue working on this and hope to be able to accomodate soon!

How much does shipping cost?

Our flat rate shipping is $8.99.

We are happy to offer free shipping on orders that only include refill packs, as well as all orders over $75. (The order total must be $75 after all coupons are applied to qualify for free shipping.)

Wholesale & custom orders

Do you need thank you or holiday gifts for your staff? Have you already picked out the perfect set of blends for you family? Do you own a store that would be a perfect match for sandcastle?

Email us directly and we can explore the options together!

Why did I receive packing peanuts in my order?

Being eco-friendly is difficult at any level of business, but we are dedicated to reducing our waste as much as possible. For Sandcastle that means that every piece of packing material that comes into our facility, is reused. We even shred our waste paper including label and sticker backings.

That is why you may see a variety of peanuts, bubble wrap, packing paper or paper shreds protecting your order. We even use old labels to seal our boxes!

Reduce, Reuse, Recycle & let’s strive for a better way together.

Can I buy your products in person?

Yes! We regularly attend Farmers Markets in our home state of Texas and have a number of stores that stock a limited selection of Sandcastle Products. Please check out our Where to Buy page to find a store near year.

For a complete selection of our products (including refill packs!), you can buy directly from our website.