FAQ

Kosterina extra virgin olive oils and balsamic vinegars are a cook’s best friend. Our extra virgin olive oils are produced to withstand high cooking temperatures (over 450° F) and our balsamic vinegars add depth of flavor to any dish. Lastly, our EVOO dark chocolate has been known to make the best indulgent-but-healthy desserts and treats. You can find our treasure trove of Kosterina-crafted recipes and recommendations here.

Kosterina products are not certified kosher. However, extra virgin olive oil is a naturally kosher product.

We highly recommend our products as gifts! You can add gift messages to any order during checkout and your gift message will appear on the packing slip.

If you are looking to purchase multiple bottles of any product for an event or you’d like to gift our products to multiple individuals, please reach out to our customer service team at hello@kosterina.com. We are here to help bring your vision to life!

Kosterina is carried at retailers across the U.S., including Whole Foods Market, Erewhon, Crate & Barrel, and many small, specialty retailers. You can find Kosterina at a store near you here.

“EVOO” stands for “Extra Virgin Olive Oil,” which is a regulated quality designation for olive oil.

The different qualifiers for olive oil reflect the point at which the olive oil was first extracted. "Extra virgin" olive oil comes from the very first press of the olive. “Virgin” olive oil comes from the second press. Finally, “pure” or regular “olive oil” can be from the third or 4th press. In addition, in order to be deemed extra virgin, olive oils must have a polyphenol content of at least 55 mg/kg, as measured at the time of harvest. (So what is Kosterina EVOO 's polyphenol content? 400-500 mg/kg).

We, of course, don’t recommend you consume anything except pure extra virgin olive oil!

Kosterina EVOO is always harvested early. “Early Harvest” is a designation given to extra virgin olive oils that are harvested early in the season - aka when the olives are still unripe (aka green!). Olives have the highest polyphenol content (and therefore health benefits) at this point and, therefore, harvesting olives early is key to making the best quality extra virgin olive oil.

Of course, as you might have imagined, unripe olives harvested early yield less juice, which means more olives are required to make a bottle of EVOO, which is why authentic early harvest EVOO tends to be healthier and more flavorful (...but also more expensive).

Yes, there is a lot of fraud in the olive oil market; many oils that read “extra virgin” on the label have been diluted with other refined oils and do not meet the necessary requirements (such as polyphenol content or acidity levels). Therefore, you should always examine labels carefully, reading ingredients lists and checking for quality certification.

Here are additional tips for spotting high quality EVOO while shopping:

• Look for an opaque bottle/package. Translucent bottles let in light and light is enemy #1 to good olive oil.
• Look for a harvest date on the bottle. You want to make sure you’re consuming fresh EVOO from the most recent harvest, which (in the northern hemisphere) happens in between October and January. Olives that are harvested early have the richest flavor and the highest polyphenol content.
• Read the bottle, looking for any reference to the source of the olives. Many olive oils that simply state "olive oil" as their ingredient, without any reference to a source, are usually made from a blend of olives, which decreases the quality, taste and health benefits. In fact, authentic, high-quality EVOO should be made from a single varietal of olives.
• The best way to test EVOO's polyphenol (antioxidant) content is to taste it. We highlight how to test EVOO like an expert in this blog post.

Olive oil has been proven to lower LDL (bad cholesterol) and raise HDL (good cholesterol) levels when used to replace saturated fat such as butter. It also contains beta carotene, vitamins A, E, D and K, plus many more healthful nutrients. Research shows these nutrients have beneficial effects on almost every bodily function.
Extra virgin olive oil has the lowest oxidation rate of cooking oils, meaning it is able to maintain its molecular structure when heat is applied. You want to lowest oxidation rate possible because oxidation promotes free radicals, chemicals that are highly reactive and damage cells. Some of this damage may lead to cancer and other disease states.
Extra virgin olive oil is also one of the best sources of antioxidants, which protect cells from damage and oxidation. Extra virgin olive oil also has an amazing skin- and body-protecting polyphenols called hydroxytyrosol. Studies show that hydroxytyrosol has among the greatest free-radical absorbing capacities.

Polyphenols are a group of naturally-occurring, plant-based chemicals found in a variety of fruits, nuts, seeds and spices - including olives. Like other antioxidants, polyphenols are proven to fight against aging-related diseases like heart disease, high blood pressure and cholesterol, as well as certain types of cancer. In addition to their anti-aging properties, polyphenols contain strong anti-inflammatory properties.
In fact, it’s thought that two tablespoons of extra virgin olive oil a day is enough to provide these anti-inflammatory benefits. You can read more on our blog post here.

Since EVOO is, quite literally, a fruit juice, it is recommended that a bottle be consumed within 3 months of opening for maximum quality, taste and health benefits (Since EVOO has so many uses and benefits, we usually finish ours well before 3 months!). That being said, our EVOO is still safe to consume after 3 months. It will just be less fresh, tasty or health-benefiting.

In a cool, dry place away from direct sunlight and never in the fridge. We recommend displaying your beautiful, opened Kosterina bottles on the countertops in your kitchen - and your sealed back ups in the pantry!

Kosterina ships to the lower 48 states.

At this time, Kosterina only ships to locations within the continental U.S. (excluding Hawaii and Alaska).

All orders will ship 1-2 business days after the order is placed. Cake orders will ship on the date selected at checkout.

Kosterina orders ship from Indiana, with the exception of cake orders, which ship from New York.

• Shipping is free for all orders over $75 (excluding Olive Olive Cake)
• Orders under $75 are subject to a $8.99 shipping charge
• Skincare-only orders under $75 are subject to a $4.99 shipping charge
• Cake orders are subject to a $15 shipping for orders of 1-2 cakes, plus $15 for every additional 2 cakes.

Kosterina EVOO and vinegars are bottled in glass bottles, so we ship all orders in heavy, corrugated cardboard boxes, similar to a wine delivery box, to protect the bottles.

We want all our customers to be happy. If, for whatever reason, you are not, please reach out to hello@kosterina.com.

Kosterina EVOO is harvested early in the season (November or December) in Greece. The EVOO is then brought to the U.S., packaged and available for sale by March.

This year’s harvest began in December 2020 and ended in January 2021. We always want our customers to only have the freshest EVOO, which is why this harvest will be available for sale until February 2022.

Kosterina EVOO is always made from a single crop of early harvest Koroneiki olives - the most popular (and we believe the best) varietal in Greece.

All Kosterina EVOO is made with our high-polyphenol extra virgin olive oil. Our Organic Everyday EVOO has a polyphenol count of over 300 mg/kg as measured at the time of harvest, and our Original Extra Virgin Olive Oil has a polyphenol count of over 400 mg/kg as measured at the time of harvest.

Kosterina has a chemical analysis done by a third party as soon as the harvest is complete each year. We use the Folin-ciocalteu method for phenol testing.

The acidity level of Kosterina Original Extra Virgin Olive Oil is .17%. The acidity level of Kosterina Organic Everyday Extra Virgin Olive Oil is .29%. For reference, in order to be deemed “extra virgin,” an olive oil must have an acidity level below .80%.

The smoke point of all Kosterina extra virgin olive oils is over 450° F, making it an excellent choice for grilling, roasting, baking, frying, or cooking at most high temperatures. You can read more on the science of cooking with olive oil here.

The flavor profile for Kosterina Original Extra Virgin Olive Oil is green tomato, artichoke, and banana.

For reference, quality EVOO should smell like fresh grass, fruit, or vegetables and reveal more fruit and vegetable flavors as you swirl it around your mouth and taste it. High-polyphenol EVOO should also have a peppery sensation at the back of your throat when you swallow it (which might cause you to cough! a tell-tale sign of strong antioxidants).

The “best by” date on Kosterina EVOO bottles is not an expiration date, but rather a frame of reference for when EVOO should be consumed for maximum fresh flavor and health benefits. Our “best by” dates are marked for 2 years after harvest.

Kosterina Organic Everyday Extra Virgin Olive Oil is certified organic.

Kosterina Original Extra Virgin Olive Oil (and all of our flavored olive oils, which use the Original as their base EVOO), are produced using organic farming methods, with no herbicides, pesticides or synthetic fertilizers. This product is not currently certified organic but we have applied for our organic certification and expect to receive it in 2022.

Kosterina Original EVOO is highly aromatic and intensely flavorful - a testament to its high polyphenol content of +400 mg/kg. It is ideal for drizzling, dipping, and finishing – any time temperature is not applied, in order to experience the full extent of its robust flavor.

The Organic Everyday EVOO has a more mild flavor that will not overpower your food, a slightly lower polyphenol content of +300 mg/kg, and an incredible price point for the quality. It is perfect for using liberally when cooking any meal.

In summary, our blue bottle should live next to your stove and our white bottle should live on your kitchen table. Read more here.

Absolutely! There is a long history behind the effectiveness of EVOO and its benefits for the skin. Cleopatra famously would use olive oil for her skin care rituals, even bathing in it! And dermatologists and studies agree: EVOO does wonders for your skin (and hair). Not only is it great for hydration and glow, but it's packed with antioxidant properties like squalene that protect your skin from free radicals, environmental damage and more.

Of course, we encourage you to defer to your dermatologist when in doubt. And you can read more about this topic here.

Kosterina balsamic vinegar is made in Modena, Italy. Like Champagne, balsamic vinegar is a protected product; in order to be deemed authentic balsamic vinegar, it must be made in Modena, Italy.

Kosterina balsamic vinegar is made from Trebbiano and Lambrusco grapes.

Kosterina balsamic vinegar is aged for 6 years in oak barrels that are 30 years old.

Like extra virgin olive oil, balsamic vinegar is high in antioxidants.

No - it is recommended that balsamic vinegar be stored in a cool, dry place and never in the refrigerator.

If stored in a cool, dry place, balsamic vinegars are usually safe to consume for up to 3 years.

No sugar is added–the sugar content all comes naturally from the fermented grapes.

Made from White Cooked Grape Must, imported from Italy, and White Wine Vinegar, imported from Greece. Fruit is crushed and combined with imported products in the U.S.A.

No - it is recommended that crushed fruit vinegar be stored in a cool, dry place and never in the refrigerator.

If stored in a cool, dry place, crushed fruit vinegars are usually safe to consume for up to 2 years.

The vinegar used in our Crushed Fruit Vinegars naturally preserves the fresh fruit - it does not go bad, change in flavor over time, or need to be refrigerated. There are no preservatives or additives.

No sugar is added–the sugar content all comes naturally from the fermented grapes and crushed fruit.

Crushed fruit vinegar is one of our most versatile ingredients - it can be used in salad dressings, sauces, desserts, drinks. It also stands up well to heat, and you should not feel hesitant to bake with it or reduce it on the stovetop as part of a sauce.

Because when polyphenol-rich olive oil is combined with antioxidant-rich dark chocolate, the antioxidant properties are amplified in one smooth, heart-healthy treat (the perfect win-win situation ;).

Our organic cacao is sourced from South America

The cacao content of our organic cacao is 70%.

Kosterina EVOO Dark Chocolate Bars have 9g of sugar per serving and are formulated with coconut sugar (no refined sugar).

Kosterina EVOO dark chocolate bars are not keto friendly but are paleo friendly.

All Kosterina EVOO Dark Chocolate bars are produced in a facility that processes nuts. Three of our EVOO Dark Chocolate bars contain nuts: Almond Butter & Vanilla (almonds), Cashew Quinoa (cashews, and Nuts, Cinnamon, & Honey (pistachios, almonds, walnuts, pecans).

Year round, Kosterina EVOO Dark Chocolate is shipped on Mondays, Tuesdays, and Wednesdays in order to minimize time in a warm truck. The chocolate is always shipped in heavy, corrugated cardboard boxes to protect from breakage. In the warmer months, however, our chocolate is shipped on ice via 2-day shipping in order to help prevent melting. An additional shipping charge is applied.

Our cakes are best enjoyed at room temperature with fresh powdered sugar sifted on top. Florence Fabricant of the New York Times enjoys her cake with a scoop of sorbet.

Approximately 8 people.

Cakes will remain fresh for about 4 days from ship date without refrigeration. After 4 days, we recommend refrigerating. Once in the refrigerator, the cake will remain fresh for another 5-7 days. Cakes can also be frozen and enjoyed, once thawed, 2-3 weeks after the initial freeze.

Kosterina Olive Oil Cake can be stored covered at room temperature for 4 days, in the refrigerator for 5-7 days, or in the freezer for 2-3 weeks.

Kosterina Olive Oil Cakes are baked fresh every Wednesday, in small batches, at Kosterina’s very own bakery facility.

Kosterina Olive Oil Cake is shipped via UPS and guaranteed to arrive within 2 days of your chosen shipment date to ensure freshness. The cake is sealed and packed in a cake box placed within a heavy, corrugated cardboard box to ensure the cake does not get damaged. Due to the perishable nature of this item, the following additional shipping surcharges will apply:

• $15 shipping charge to all orders of 1-2 cakes
• $30 shipping charge to all orders of 3-4 cakes
• $45 shipping charge to all orders of 5-6 cakes
• $60 shipping charge to all orders of 7-8 cakes
• $75 shipping charge to all orders of 9-10 cakes

Olive Oil Cake is excluded from shipping promotions.

Not at this time. Our Olive Oil Cakes ship directly from our baking facility, so it cannot be combined in one shipment with other Kosterina products.

Olive oil is rich in vitamins and antioxidants, and has been linked to improved skin moisturization and anti-aging effects such as helping to reduce the appearance of wrinkles. When applied to the skin, antioxidants may prevent premature aging. Extra virgin olive oil has exceptional moisturizing and nourishing properties to hydrate the skin of both face and body. Kosterina early harvest olive oil has a high concentration of polyphenols, known for their antioxidant content, which is known to have tremendous health benefits.

We have formulated products with optimal levels of olive oil for each specific product in order to provide the maximum benefits of the olive oil to the skin while offering the perfect aesthetic performance such as quick absorption onto skin.

Kosterina skincare products is dermatologist-tested and are formulated with non-comedogenic ingredients, which optimally won’t cause breakouts or clogged pores

Kosterina early harvest olive oil has a high concentration of polyphenols, known for their antioxidant content, which is known to have tremendous health benefits. We have formulated skincare products with optimal levels of our olive oil along with ingredients such as Lachestim, known to reactivate youth proteins in the skin and olive-derived squalane, that protect the skin barrier, resulting in a younger, fuller-looking appearance.

Our packaging is made with recyclable glass bottle, paper carton and/or sustainable PP (polypropylene) recyclable plastic.

All Kosterina skincare products contain only the good stuff and none of the bad. We formulated our products without emulsifiers, parabens, petrolatum, paraffin, phthalates, toluene, triclosan, triclocarban, formaldehyde, aluminum powder and animal by-products.

An exceptional oil extracted from the Pistacia Lentiscus, a tree native to the island of Chios, Greece, Lachestim is known to reactivate youth proteins and improves the supporting fiber density. By reactivating cellular anti-oxidant activity that improves DNA protection and increases collagen synthesis, this core ingredient helps skin look younger and fuller.

Olive-derived squalene is a botanical lipid, known to hydrate and maintain the skin's barrier while it fights free-radical damages, this valuable lipid is extremely compatible with the skin to helps restore a more youthful appearance.

Our signature scent consists of an herb spice essential oil blend that includes cardamom seed oil, lemon oil, sandalwood, rosemary and lavender. This scent is meant to transport you from your daily routine to the Mediterranean seaside.

Serums are lightweight, concentrated liquids formulated to help correct skin concerns as hyperpigmentation and dullness. They are typically water-based and contain other moisturizing ingredients like hyaluronic acid. Facial oils are oil-based liquids formulas and typically formulated with non-comedogenic botanical oils and includes plant extracts and antioxidants, which won’t cause breakouts or clogged pores. Face oils are rich, emollient formulas that helps moisturize and soften the skin and nourish the skin barrier while leaving a youthful glow.

We love our furry friends and do not test on animals.

Our signature scent consists of an herb spice essential oil blend that includes cardamom seed oil, lemon oil, sandalwood, rosemary and lavender. This scent is meant to transport you from your daily routine to the Mediterranean seaside.

Several ingredients in our products are certified organic.

If you have any specific skin concerns, we recommend consulting with your doctor or dermatologist before use.